Home      Calendar      About OCA      E Zine      Resources      Image Gallery      Members
    www.ocastronomers.org /
You must login to access member-only information
Login
   

Saturday January 25th Black Star Canyon star party
By: Steve & Bonnie Short
January 22, 2014 5:05AM PDT
Views: 1985


 


Black Star Canyon Star Party notice - Saturday January 25th, 2014

 

Hello Fellow OCA club members!

 

This Saturday, I plan to open the gate around 4:45 pm, which is about a half hour before the sun sets. The weather report for this Saturday indicates that Orange County should be warm with humidity at 35%.  But please keep an eye on the OCA website “Home” page (below the next speaker info) where we will post a notice should the star party be canceled for any reason.

 

We should have fairly dark skies as the 3rd quarter Moon will not rise until after midnight. First time visitors might want to get to the star party site while it is still light so they can find their way down the dirt road and into the parking area. Remember that you take the 2nd farm gate on the left after turning on Black Star Canyon Road (the 1st farm gate is the Xmas Tree farm). If you come in after dark, you should drive in with your headlights off!!! The dirt road may be marked with red flashers and you can hold a flashlight out the driver’s window to light up the road directly in front of your car.


Try to park two cars in each slanted slot between the rock turning circles so we can get 20 cars into that area. I will help guide the first cars into the slots and then expect that others will follow that pattern. The first car in each slot must stay back, about a foot, from the road that leads out of the parking area so cars that leave early with headlights off will not accidentally bump into parked cars.

 

WarningNo Pets allowed(This is an OC Parks and Nature Conservancy rule).

 

Satellites:

  The ISS (International Space Station) will not make any visible passes this Saturday evening.

  The HST (Hubble Space Telescope) will not make any visible passes this Saturday evening.

 Iridium flares: There will not be any visible Iridium Flares this Saturday evening.

But I am sure we will see a number of satellites pass over in the early evening.

 

Planets & Pluto:

~Mercury, (Mag -0.9) sets about 6:30 pm in constellation Capricornus this Saturday so might be seen at the BSC star party. Mercury will be about 102 million miles from Earth.

~Venus, (Mag -4.4) will not be seen Saturday evening as it sets about 3:45 pm in constellation Scutum. Venus will be about 28 million miles from Earth, approaching 50” in diameter but will be just 10% lit. Venus rises about 5:15am so can be seen early in the morning.

~Mars, (Mag 0.4) is now in Constellation Virgo rising about 11pm so might be seen in the last hour we are open at BSC this Saturday. It is now about 104 million miles away and doesn't set until 10:30am.

~Jupiter, (Mag -2.4) will rise about 3:20pm Saturday in constellation Gemini so can be seen high in the sky this Saturday evening. It will be about 400 million miles from Earth getting a little further every day with a diameter of about 47”. At 6pm, we should see moon Ganymede east of Jupiter and then Io the same distance west of the big planet. Callisto will be more than 3 times that distance west of the big planet. Europa will not be seen as it is passing behind Jupiter but by 7pm it will become visible just to the east of the big planet and by 11pm, Europa will be next to Ganymede.

~Saturn, (Mag 1.1) will be in constellation Libra this Saturday so cannot be seen Saturday evening. It has a disk measuring 16” and can be seen late night when it rises about 1:30am. It will be about 941 million miles away Saturday.

 ~ Uranus, (Mag 5.9) will be in constellation Pisces high in the sky this Saturday evening as it rises about 10am. It shows up as a small 3.5” blue-green disc in a telescope so look for it Saturday evening. Uranus can be seen until setting about 10pm and will be about 1.903 billion miles from Earth.

~ Neptune, (Mag 8.0) is in constellation Aquarius, about 2.869 billion miles away this week slowly moving farther from Earth. It is seen as a bluish gray 2.3” disc in a telescope. We should be able to see it at BSC this Saturday evening until it sets about 7:20pm.

 ~ Pluto, (Mag 14.2) sets at 3:25pm in constellation Sagittarius so can't be seen Saturday evening. Since it rises at 5:20am, it could be seen early in the morning just before sunrise It is 3.115 billion miles from Earth and since it is so dim, you would need a 10” or larger telescope to see it visually.


Meteors/Comets/Asteroids:

The Quadrantid meteor shower peaked January 3rd and with a New Moon on the 1st, it was perfect viewing conditions. This shower was first observed in 1825 from the Brussels Observatory. It is produced by particles from asteroid 2003 EH1 instead of from a comet. At its peak, you might see over 60-120 meteors an hour that seem to radiate from a point in northern Bootes.


If you ever wanted to do some real scientific meteor counting, the International Meteor Organization (IMO) always needs more observers. You will need to follow the IMO's standards so your counts will be meaningful. See www.imo.net/visual for more information.


We usually see a few stray meteors during every Saturday evening BSC star party.


Brightest visible Comets:

Magnitude 6.2 Comet C/2013 R1 Lovejoy might be seen Saturday in Ophiuchus at a point that forms a right triangle with Altair and Vega. It will be about 134 million miles from Earth and has a period of 12,744 years.


Magnitude 8.9 Comet 154P Brewington might be seen Saturday in Andromeda 10 degrees to the east of the big Square It will be about 145 million miles from Earth and has a period of 10.8 years.


Comet ISON (C/2012 S1) was a big disappointment as it broke up after rounding the Sun and is no longer visible.


Brightest visible asteroids:

Finding an asteroid at the BSC star party this month will be very challenging as they are dim and not well positioned for evening observing.


The brightest asteroid this month is Minor Planet 4 Vesta (Mag 7.4), the 2nd most massive object in the asteroid belt, can be found in constellation Virgo this month 10 degrees above bright star Spica. Vesta has a diameter of about 330 miles and was discovered in 1807. It is about 183 million miles from Earth at this time and has an orbit period of 3.63 years. It will be visible at the BSC star party about 11pm. NASA’s Dawn spacecraft was in orbit around this asteroid and sent back stunning close-up pictures.

 

Minor Planet 2 Pallas (Mag 7.5), is the second asteroid to have been discovered (after Ceres), and one of the largest in the Solar System. It can be found in constellation Hydra this month. This asteroid has a diameter of about 338 miles. When Pallas was discovered by astronomer Heinrich Wilhelm Matthaus Olbers on March 28, 1802, it was counted as a planet, as were other asteroids in the early 19th century. The discovery of many more asteroids after 1845 eventually led to their re-classification. It is about 128 million miles from Earth at this time and has an orbit period of 4.62 years. It will become visible around 9pm so might be seen at the BSC star party.


Minor Planet 1 Ceres (Mag 8.4) is the biggest object in the asteroid belt with a diameter of about 590 miles. It is in constellation Virgo and can be found just ahead of Vesta about half way from Spica to Arcturus. It is about 217 million miles from Earth now and has a period of 4.61 years. It was discovered in 1801 and for 50 years was classified as the 8th planet. But don’t expect to see anything more than a small dot. It will be visible Saturday evening around 11pm so might be seen at the BSC star party. This asteroid will be the next stop for the Dawn spacecraft.

 

Deep Sky:

This month let’s consider looking at some neat multiple star systems:


y Andromedae is an attractive double star consisting of a bright orange star with a mag 5 blue companion. All that is needed is a 3” or larger scope to split these stars that are separated by 9.8” (seconds). The stars called Almach AB are the third star in the first Andromeda strand starting from Alpheratz. This double is 355 light years from Earth and the stars are 1,065 AU distance apart with a rotation period of 61.1 years. The secondary is itself a double, both blue in color and separated by just .4”. The stars are each 1,179, 56 & 27 times brighter than our sun.


y Arietis is a pair of magnitude 4.8 bluish-white stars that appear to form a true system separated by 7.8”, although the relative motion of the stars is very small. Very little change has been noted in the last 350 years. The stars are 36 times brighter than our sun. There is a third component of this set of stars that is not gravitationally bound to the AB components. It is much fainter at magnitude 9.6 and is separated by 221”. This star system is found just a few degrees west of Aries Beta star.


n Cassiopeiae is a gorgeous double star consisting of contrasting colors. The colors are most often seen as gold and purple or yellow and red. The primary star is magnitude 3.4 while the secondary is a magnitude 7.5 M class dwarf. The two stars orbit each other every 480 years. The stars are just 19 light years from Earth and are 76 AU distance apart. This double star is found about half way between alpha star Shedir and the Gamma star.


I have given you the double star separations in arc seconds (“) but you can use an astrometric eyepiece to check the separation distance yourself. These eyepieces have a laser etched reticle with a ruler graduated at 100 micron intervals that can be used to measure distance. They have a battery powered variable illuminated system so the ruler scale can be easily seen.


Before an accurate measurement can be made, you must calibrate the linear scale to determine the number of arc seconds per division. This is done by using a stop watch to time how long it takes for a star to pass from one end of the scale to the other. To convert to arcseconds, multiply the time by 15.0411 Cos Y, where Y = the star's declination. Then divide by the number of divisions in the scale.

 ---------------------------------------------------------------------------------------------------------------------------

Don't forget to bring your gloves, coats & sweaters as it can get cold after the sun sets and even colder as the night approaches midnight when we close. After you set up your telescope, there are three picnic tables where you can sit and eat food you might bring, while waiting for the sky to get dark. Please remember to cart off all your trash as there are no garbage cans at BSC. There is also one portable restroom on site should nature call.

 

Hope to see you there.

 

Your OCA star party host,

Steve

Email this Article Printer Friendly Version




Related Articles
- Mars Mania at the UCI-OCA Mars Party
- Saturday 10/04/08 BSC star party
- Impressions of Starry Nights Festival
- Black Star Canyon star party Saturday April 10th 2010
- January 2004 Sirius Astronomer
- January 2004 President's Message
- Anza Star Party, February 2004
- Register for IDA fall meeting and CalStar 2005
- Saturday April 26th Black Star Canyon star party
- January 2005 President's Message
- Amended Proposed Agenda for January Board Meeting
- Saturday 02/26/11 Black Star Canyon star party
- Bommer Canyon Outreach/Public Viewing event tonight at 8:30
- Blackstar party 12/24/05
- Saturday May 12th Black Star Canyon star party
- January 2006 Sirius Astronomer
- Around OCA for January, 2006
- Blackstar Canyon star party 01/21/06
- Blackstar Canyon Star Party this Saturday
- Blackstar Canyon star party 04/22/06
- 05/20/06 Black Star Canyon star party
- 04/07/07 Black Star Canyon star party
- 12/23/06 Black Star Canyon star party recap
- January 2007 President's Message
- January 2007 Sirius Astronomer
- 01/13/07 Black Star Canyon recap
- 02/10/07 Black Star Canyon recap
- Blackstar Canyon star party 07/29/06
- June 9th 2007 Black Star Canyon star party
- BSC star party July 7th
- 07/07/07 Blackstar Canyon Recap
- BSC star party Saturday Aug 4th
- 08/04/07 Blackstar Canyon recap
- BSC star party Saurday Sept 1st
- BSC 06/17/06 star party
- Black Star Canyon star party Saturday 03/10/07
- 09/01/07 Black Star Canyon recap
- BSC star party Saturday Oct 6th.
- 10/06/07 BSC star party Recap
- Black Star Canyon star party Saturday 11/03/07 has been cancelled!
- Black Star Canyon star party Saturday 12/01/07
- 04/07/07 Black Star Canyon star party RECAP
- 03/10/07 Black Star Canyon recap
- 12/01/07 BSC star party recap
- January 2008 Sirius Astronomer
- Black Star Canyon star party 01/12/08
- Black Star Canyon star party 01/12/08
- New Parking Permit Needed for the January Meeting!
- January 2008 President's Message
- 01/12/08 BSC star party recap
- Black Star Canyon star party Saturday 02/09/2008
- Black Star Canyon star party Saturday 02/09/2008
- 02/09/2008 BSC star party recap
- Saturday March 1st Black Star Canyon star party
- Black Star Canyon 08/19/06
- 12th annual Starry Nights Festival September, 2008
- Black Star Canyon 09/16/06
- 10/28/06 Black Star Canyon
- 11/11/06 Blackstar Canyon star party recap
- 03/01/08 BSC star party Recap
- Black Star Canyon star party 03/29/08
- 03/29/08 BSC star party recap
- 04/26/08 BSC star party Recap
- BSC star party Saturday May 31st 2008
- 05/31/08 BSC star party recap
- SoCal Starfest and Special Palomar Observatory Tour
- Saturday evening June 28th Black Star Canyon star party
- 06/28/08 BSC star party recap
- Saturday July 26th Black Star Canyon star party
- 07/26/08 BSC star party recap
- Black Star Canyon star party Saturday August 30th
- August 30th BSC star party recap
- Black Star Canyon star party 09/20/08
- Saturday 09/20/08 BSC star party recap
- Saturday 10/04/08 BSC star party Recap
- Saturday 11/22/08 Black Star Canyon star party
- Saturday 11/22/08 BSC star party recap.
- Black Star Canyon star party Saturday 12/20/2008
- January 2009 President's Message
- Black Star Canyon star party Saturday 02/28/09
- Saturday 02/28/09 BSC star party recap
- Saturday 03/21/09 Black Star Canyon star party
- Saturday 12/20/08 BSC star party recap
- Black Star Canyon star party Saturday 01/17/09
- Black Star Canyon star party Saturday 01/17/09
- Saturday 01/17/09 BSC star party recap
- Saturday 03/21/09 BSC star party recap
- Saturday April 18th Black Star Canyon star party
- 04/18/09 BSC star party Recap
- Saturday 05/16/09 Black Star Canyon star party
- 05/16/09 BSC star party recap
- Black Star Canyon star party Saturday 06/13/09
- 06/13/09 BSC star party recap
- 07/25/09 Black Star Canyon star party
- 07/25/09 BSC star party recap
- Saturday 08/15/09 Black Star Canyon star party
- 08/15/09 BSC star party RECAP
- Saturday 09/12/09 Black Star Canyon star party
- 09/12/09 BSC star party RECAP
- BSC star party Saturday Oct 10th
- 10/10/09 BSC star party RECAP
- 11/07/09 BSC star party
- 11/07/09 BSC star party recap
- January Beginners Class Cancelled!
- Saturday 12/12/09 Black Star Canyon star party
- BSC star party is cancelled!
- 02/26/11 BSC star party CANCELLED
- Saturday BSC star party January 9th
- 01/09/2010 BSC star party recap
- January 2010 President's Message
- BSC star party Saturday Feb 06, 2010
- BSC star party 02/06/10 cancelled
- February Anza Star Party Cancelled - There is no Water there. - Do not go to Anza this weekend
- BSC star party this Saturday (03/06/2010)
- BSC star party 03/06/10 cancelled
- 04/10/10 BSC star party RECAP
- Saturday 06/25/11 BSC star party
- BSC star party Saturday May 8th 2010
- 05/08/10 BSC star party Recap
- Saturday 06/05/2010 Black Star Canyon star party
- 06/05/10 BSC star party reap
- Saturday 07/03/10 Black Star Canyon star party
- 07/03/10 BSC star party recap
- Saturday 08/14/2010 Black Star Canyon star party
- 08/14/10 BSC star party recap
- Saturday 09/04/2010 Black Star Canyon star party
- 09/04/2010 BSC star party Recap
- Saturday 10/02/10 Black Star Canyon star party
- 10/02/10 BSC star party recap
- Saturday 11/13/2010 Black Star Canyon star party
- 11/13/10 BSC star party recap
- Saturday 12/11/2010 Black Star Canyon star party
- 12/11/10 BSC star party recap
- Saturday 01/08/2011 Black Star Canyon star party
- 01/08/11 BSC star party CANCELLED
- 03/26/2011 Saturday Black Star Canyon star party
- 03/26/11 BSC star party CANCELLED
- 03/26/11 BSC star party CANCELLED
- Saturday 04/30/11 BSC star party
- 04/30/11 BSC star party recap
- Saturday 05/28/11 BSC star party
- 05/28/11 BSC star party Recap
- Saturday July 23rd Black Star Canyon star party
- Saturday October 1st Black Star Canyon star party
- 10/1/11 BSC star party Recap
- Saturday 10/29/11 Black Star Canyon star party
- 12/17/11 BSC star party cancelled
- 06/25/11 BSC star party Recap
- 07/23/2011 BSC star party recap
- Saturday August 20th Black Star Canyon star party
- 08/20/11 Black Star Canyon star party Recap
- 10/29/11 BSC star party Recap
- Saturday November 19th Black Star Canyon star party
- 11/19/11 BSC star party cancelled
- Saturday December 17th Black Star Canyon star party
- Saturday January 28th Black Star Canyon star party
- January 28th BSC star party cancelled
- Saturday February 25th Black Star Canyon star party
- 02/25/12 BSC star party Recap
- Saturday March 17th Black Star Canyon star party
- March 17th Black Star Canyon star party cancelled
- Saturday April 14th Black Star Canyon star party
- April 14th Black Star Canyon star party cancelled
- Saturday May 12th Black Star Canyon star party
- 05/12/12 BSC star party Recap
- Saturday June 23rd Black Star Canyon star party
- 06/23/12 BSC star party recap
- Saturday July 14th Black Star Canyon star party
- 07/14/12 BSC star party Recap
- Saturday August 11th Black Star Canyon star party
- 08/11/12 BSC star party Recap
- Saturday September 8th Black Star Canyon star party
- 09/08/12 BSC star party Recap
- Saturday October 20th Black Star Canyon star party
- Saturday 10/20/12 BSC star party is cancelled
- Saturday November 17th Black Star Canyon star party
- Saturday November 17th BSC star party cancelled
- Saturday December 8th Black Star Canyon star party
- 12/08/2012 BSC star party Recap
- Saturday 01/05/2013 Black Star Canyon star party
- 01/05/2013 BSC star party Recap
- Saturday 02/02/2013 Black Star Canyon star party
- 02/02/2012 BSC star party cancelled
- Saturday 03/02/2013 Black Star Canyon star party
- 03/02/2013 BSC star party Recap
- Saturday 04/06/2013 Black Star Canyon star party
- 04/06/13 BSC star partyRecap
- Saturday 05/04/2013 Black Star Canyon star party
- 05/04/2013 BSC star party Recap
- Saturday 06/08/2013 Black Star Canyon star party
- Saturday 07/13/2013 Black Star Canyon star party
- Saturday 08/31/2013 Black Star Canyon star party
- 08/31/2013 BSC star party Recap
- Saturday 09/28/2013 Black Star Canyon star party
- 09/28/2013 BSC star party recap
- Saturday 10/26/2013 Black Star Canyon star party
- 10/26/2013 BSC star party recap
- Saturday November 23rd Black Star Canyon star party
- CANCELLED: Saturday November 23rd Black Star Canyon star party
- Saturday December 28th Black Star Canyon star party
- 12/28/13 BSC star party Recap
- 01/25/2014 BSC star party Recap
- Saturday February 22nd Black Star Canyon star party
- 02/22/2014 BSC star party Recap
- Saturday March 29th Black Star Canyon star party
- 03/29/2014 BSC star party Recap
- Saturday April 26th Black Star Canyon star party
- 04/26/2014 BSC star party Recap
- Saturday May 24th Black Star Canyon star party
- Tonights May 24th BSC star party is cancelled
- Saturday June 21st Black Star Canyon star party
- 06/21/2014 BSC star party Recap
- Saturday July 19th Black Star Canyon star party
- 07/19/2014 BSC star party Recap
- Saturday August 23rd Black Star Canyon star party
- 08/23/2014 BSC star party Recap
- Saturday September 27th Black Star Canyon star party
- 09/27/2014 BSC star party Recap
- Star Hopping
- Pulsating and Erupting Variable Stars
- Saturday October 18th Black Star canyon star party
- 10/18/14 BSC star party Recap
- Saturday November 22nd Black Star Canyon star party
- 11/22/2014 BSC star party Recap
- Saturday December 13th Black Star Canyon star party
- CANCELLED: Saturday December 13th BSC star party
- Saturday January 24th Black Star Canyon star party
- Saturday January 24th Black Star Canyon star party
- CANCELLED Saturday January 24th BSC star party
- Saturday February 14th Black Star Canyon star party
- January 24th BSC star party Recap
- Saturday Feb 14th BSC star party Recap
- Saturday March 14th Black Star Canyon star party
- Saturday March 14th BSC star party Recap
- Saturday April 11th Black Star Canyon star party
- Saturday April 11th BSC star party Recap
- Saturday May 9th Black Star Canyon star party
- CANCELLED - Saturday May 9th BSC star party
- Saturday June 20th Black Star Canyon star party
- Saturday June 20th BSC star party Recap
- Saturday July 11th Black Star Canyon star party
- Saturday July 11th BSC star party Recap
- Saturday July 11th BSC star party Recap
- Starbeque postponed to August Star Party!!!
- Saturday Aug 8th Black Star Canyon star party
- Saturday Aug 8th BSC star party Recap
- Saturday Sept 5th Black Star Canyon star party
- Saturday Sept 5th BSC star party Recap
- Saturday Oct 3rd Black Star Canyon star party
- Saturday Oct 3rd BSC star party Recap
- Saturday Nov 7th Black Star Canyon star pary
- Saturday Nov 7th Black Star Canyon star party Recap
- Saturday Dec 5th Black Star Canyon star party
- Saturday Dec 5th Black Star Canyon star party Recap
- Saturday Jan 2nd Black Star Canyon star party
- Saturday Jan 2nd Black Star Canyon star party Recap
- Saturday Feb 13th Black Star Canyon star party
- Feb 13th BSC star party Recap
- Saturday March 5th Black Star Canyon star party
- CANCELLED-March 5th BSC star party
- Saturday April 30th Black Star Canyon star party
- Apr 30th BSC star part Recap
- Saturday May 28th Black Star Canyon star party
- May 28th BSC star party Recap
- Saturday June 24th Black Star Canyon star party
- June 25th BSC star party Recap
- Starbecue on 7/30/16!
- Saturday July 30th Black Star Canyon star party
- July 30th BSC star party Recap
- Saturday August 27th BSC star party
- August 27th BSC star party Recap
- Saturday September 24th BSC star party
- September 24th BSC star party Recap
- Saturday October 22nd BSC star party
- October 22nd BSC star party Recap
- Saturday Nov 19th BSC star party
- Saturday BSC star party-CANCELLED
- Volunteers needed for January 5th event
- Saturday Dec 17th BSC star party
- Saturday BSC star party-CANCELLED
- Saturday Jan 21 BSC star party
- Saturday BSC star party-CANCELLED

| Search

Copyright © 2001 - 2017 Orange County Astronomers
Bringing the universe into focus since 1967
About Us | Site Map | Contacts
Calendar | Gallery | General Meetings

amazon Amazon | OCAstroShop OCAstroShop | youtube YouTube | google+ Google+
facebook Facebook | twitter Twitter | instagram Instagram