Seeing double ~ Crux (opinions please) - Page 2

ving (David) · #21 09-05-2006, 02:40 PM

lol, no ron... far too lazy.

dennislowe · #22 09-05-2006, 10:01 PM

David,
I spent a little time on your list, from home. I do not have the best southern aspect due to trees. So far I have managed 6 and 7 off your list with certanty. Your 1 (Acrux) I have resolved in the past.
This has got me a little more interested in doubles, but I have no gear to measure PA or separation. Do you do any measurments.
Dennis.

ving (David) · #23 10-05-2006, 09:18 AM

hi dennis, glad to hear you doing the list

I get my measurements from cartes du ciel. I do plan on getting an eyepiece that will help me measure separation and PA soon

thanks for the interest.

janoskiss (Steve H) · #24 10-05-2006, 09:39 AM

good stuff Vingo! Never got into doubles, but I'm looking forward to hunting these down.

ving (David) · #25 10-05-2006, 09:55 AM

hey dennis, try number 5 on my list... quite pretty

ausastronomer (John Bambury) · #26 10-05-2006, 12:23 PM

Quote:

Originally Posted by janoskiss

good stuff Vingo! Never got into doubles, but I'm looking forward to hunting these down.

Doubles are good fun because in most cases they look just as good in smaller apertures and you're not significantly affected by mild light pollution.

CS-John B

iceman (Mike) · #27 10-05-2006, 12:32 PM

I overlooked this thread for too long, glad I just took the time to read it. Nice challenge Vingo, and a great way to get people out there and observing.

ving (David) · #28 10-05-2006, 12:37 PM

yeah, not all my post are spam

would you be opposed to this on a monthly or bimonthly basis mike? I hae started my second one already, it was fun to do

janoskiss (Steve H) · #29 10-05-2006, 01:06 PM

Quote:

Originally Posted by ausastronomer

Doubles are good fun because in most cases they look just as good in smaller apertures and you're not significantly affected by mild light pollution.

I was wondering about that. It will give me something to observe besides the Moon and planets from my light polluted back yard.

Quote:

Originally Posted by ving

yeah, not all my post are spam

would you be opposed to this on a monthly or bimonthly basis mike?

I think Mike and all other IIS members would be strongly opposed!

ving (David) · #30 10-05-2006, 01:19 PM

fer a moderator you sure are a strange bloke steve

iceman (Mike) · #31 10-05-2006, 01:42 PM

It'd be great, Vingo.

Post them on this forum for now.. when I get some more time i'll re-ignite the monthly observing challenges and the "doubles" section can be an article on their own, with your contributions. It can be a collaborative effort with contributions from Rod, John or any others that might be interested.

Good stuff!

janoskiss (Steve H) · #32 10-05-2006, 01:46 PM

Sorry, Ving!

Of course this sort of thing once a month or whenever you can find the time would be great.

Observing guides to doubles are particularly handy because it's hard to pick the observable ones from sky charts (either printed or software). One of the reasons I had neglected them.

ving (David) · #33 10-05-2006, 01:50 PM

no probs then mike. sounds er... sound

steve, taken tongue in cheek. no worries

vespine · #34 10-05-2006, 02:05 PM

hey if you still want any feed back on constellations to do next, how about Scorpio?? I'm a bit of a newb so I don't know if there are any really good doubles there but I just love that constellation at the moment, still have to wait a little after dusk to get it in good position but it's really magnificent, I'm keen to explore it some more.

ving (David) · #35 10-05-2006, 02:48 PM

I'll keep that in mind for not the next one but the one after if you like... i have the next one half written already.

ausastronomer (John Bambury) · #36 10-05-2006, 03:33 PM

Quote:

Originally Posted by vespine

hey if you still want any feed back on constellations to do next, how about Scorpio?? I'm a bit of a newb so I don't know if there are any really good doubles there but I just love that constellation at the moment, still have to wait a little after dusk to get it in good position but it's really magnificent, I'm keen to explore it some more.

Hi,

Scorpius has some very nice doubles in it. Some like Antares and Nu Scorpii require good conditions and optics but all are very "splittable". Off the top of my head, some are:-

Alpha Scorpii (Antares)
Beta Scorpii
Nu Scorpii
Sigma Scorpii
Xi Scorpii (which is attached to another double Struve 1999)

All worth chasing

CS-John B

dennislowe · #37 10-05-2006, 09:54 PM

Sorry David, not able to get into your stuff tonight due to some high altitude Ice.
Just a thought, looking at some of the posts, one gets the feeling that looking at multiple star systems is something to do when the moon gets in the way of faint nebule. All I can say is, try a few of these systems at optimum viewing time. They can blow you away.
Dennis.

ving (David) · #38 11-05-2006, 09:03 AM

indeed dennis. best viewing for anything is on a new moon

(except the moon that is

).
high altitude ice?

ThunderChild (Chris) · #39 11-05-2006, 10:40 AM

Hi Ving,
Thanks for that - all I need now is for this cloud to go away - which seems to have settled in for the long haul!

One newbie question : You mention the difference between true binaries and optical doubles - could you classify which category each of these fall into?
I became interested in binaries a month or so ago and would look forward to more of these lists - but I'd love it if any future lists could show which ones are 'real' binaries. They seem much more interesting to me (just my opinion).

ving (David) · #40 11-05-2006, 11:11 AM

i can do that starting the next lot if you like.

its not hard to do.