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Messages - Mark

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1
Observing Intents / New Moon weekend
« on: April 17, 2017, 06:17:24 PM »
Anyone notice the weather forecast?  Shhhh....  :P

Thinking Pinnacles, Saturday night....

2
TAC Visual / Re: Question about observing at Pinnacles
« on: April 14, 2017, 08:01:15 AM »
Thanks McMark... that's a sensible approach.  Observing till 2 am or so and getting 3-4 hours sleep (and using my phone alarm) will make it feasible.  Wow - astronomical dark is getting late, almost 9:30 on the 22nd.

Busy Saturday for me, aikido kyu test in SF mid-morning, visiting friends in South Bay afternoon and Sunday, Pinnacles (hopefully) overnight.  Maybe see some other observers there.

Mark

3
TAC Visual / Re: Question about observing at Pinnacles
« on: April 13, 2017, 04:49:35 PM »

Thanks Jamie.  That helps.

4
TAC Visual / Question about observing at Pinnacles
« on: April 12, 2017, 10:55:52 PM »
Is it possible to catch some sleep in a car after observing at Pinnacles west?

Thanks for any help.

5
TAC Visual / Comets....
« on: April 12, 2017, 11:20:20 AM »
Anyone been checking out the comets?  At least three I know of currently, all are reasonable mags.  Here's where Comet Johnson (mag 8.2 and brightening in Hercules) is going to be on the 27th, close to Phi Herculis.  The nice sketch is from Cloudy Nights in a 12.5" telescope.

Comet 41P/Tuttle-Giacobini-Kresak is also an easy find, this chart showing it on the 21st just off beta Draconis, mag 8.7 but forecast to dim (this comet is famous for outburst though).

Nice comet site, with excellent graphics and current info: https://theskylive.com/c2015v2-tracker

6
Annual Star Parties / Re: Lake San Antonio reopens!
« on: April 11, 2017, 10:25:09 AM »
While looking for the CalStar web-page, I happened across this.  Who's bringing the wine (is it allowed?)?

http://www.calstarcellars.com/

Mark

7
Annual Star Parties / Re: Lake San Antonio reopens!
« on: April 04, 2017, 06:13:54 PM »
seance with the Potentate

Say who?

Maybe such person will just jump in here....

8
Annual Star Parties / Re: Lake San Antonio reopens!
« on: April 04, 2017, 10:12:14 AM »
4 nights is great.  I am curious, why not 9/16 start, depart 9/20 - putting the event starting between 3rdQ and NM, with more dark each night?  As is, every night the young moon is up later through the event.

The only real risk is, earlier in Sept means potential for hotter days.  I'm going to do my best to make it this year.  Lots of people I haven't seen in ages.

9
Annual Star Parties / Re: Lake San Antonio reopens!
« on: March 30, 2017, 02:39:57 PM »
Are there people here who miss the outhouse rides?

10
TAC Visual / Re: Nice binocular double star
« on: March 29, 2017, 11:10:01 AM »
Check out Stelle Doppie; 18 stars visible in the system!?  Is it a double or a cluster?  http://stelledoppie.goaction.it/index2.php?iddoppia=93063

Holy moley!  That's impressive!  And a good question....

11
TAC Visual / Nice binocular double star
« on: March 29, 2017, 10:38:32 AM »
Was looking through the good old Night Sky Observers Guide last night, curious about double stars in Cygnus - I am out before dawn these days and Cygnus is up high then.

I came across 61 Cygni, aka Struve 2758.  Its a wide double, 30.3" separation, which makes it good for binoculars.  Its the color I'm really interested in seeing - here's the description from the book:


"61 Cygni, a wide, easy separated double of two orange K-type dwarfs, is only 11.2 light years distant, the twelfth nearest star or star pair to the Solar System.  The two stars orbit each other in a period of 650 years, and will achieve maximum separation, 34", bout 2100 A.D.  The components have luminosities of only 8% and 4% of the Sun's.  Their color is probably at its best in binoculars, with which both stars are a stunning chrome orange-red.

4-6" Scopes - 75x: An easy target for small telescopes, 61 Cygni is a wide pair of bright orange stars."

Its easy to find, just off Tau Cygni behind the western wing.  Anyone seen this double?

12
Annual Star Parties / Re: Monday Morning Memory....
« on: March 27, 2017, 03:43:11 PM »
I would describe the entire Shingletown experience as "unforgetable".  I do think its a great photo.

13
Annual Star Parties / Monday Morning Memory....
« on: March 27, 2017, 09:40:49 AM »
We've come a long way....

14
TAC Visual / Re: Double Star Epsilon Canis Majoris
« on: March 03, 2017, 02:18:49 PM »
Thanks.... looks like a tough one.  I didn't google the common name - I almost always use the Greek.

Joe Bergeron, who used to be in the Santa Barbara club and would come to CalStar, wrote this:

"In my 92mm refractor it resolves neatly at 120X with good seeing from Florida, but is rarely resolvable from my New York site, which is eighteen degrees farther north."

15
TAC Visual / Double Star Epsilon Canis Majoris
« on: March 03, 2017, 11:29:21 AM »
I was looking at my old AstroCards, for good double stars in Canis Major.  I saw Epsilon listed, mags 1.6 and 8.1 with a 7.4" separation.  Started looking for any reports of splitting it - don't find any. 

Wikipedia says "The +7.5 magnitude companion star is at 7.5" away with a position angle of 161° of the main star. Despite the relatively large angular distance the components can only be resolved in large telescopes..."

Anyone try this?  I am somewhat surprised at what I'm reading....

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