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K.Pinkela
member
Reged: 03/12/09
Posts: 43
Loc: Northern California
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My latest effort is an actual double star system; not just any double stars either, I decided to order Hypersize. I also kept the star field as accurate as possible. The computer rendered drawing (I use PSP 9) also has an inset which is a portion of the orignal ALADIN image I used as a source for a newly written page on stars and as a reference for this image. The rest explains itself...at least I think it does  .
Clicking on the smaller image below will take you to the larger one - 1344px x 850px. The stars are oriented per SIMBAD and there is a small line with a coordinate reference (in case you're still undecided as to your next vacation spot-bring plenty of sunblock though).
LEFT STAR:
Hypergiant, Blue - HIP 89963
ICRS Coordinates: RA 18 21 19.5490 Dec -16 22 26.057
AKAs: HD 168625, TYC 6265-1959-1, SAO 161375, 2MASS J18211955-1622260
Spectral type: B6Ia
Radial Velocity: km/s -4 (blueshifted)
This is not a post AGB star: see Szczerba et al. These two guys have seen a lot of survey work in this and other areas. This is in part, due to the blue variable HD168625, being surrounded by a bipolar nebula that is similar to the one around SN1987A.
RIGHT STAR:
Hypergiant, Blue - HIP 89956 (Emission-line Star)
ICRS Coordinates: RA 18 21 14.8862 Dec -16 22 31.762
AKAs: HD 168607, TYC 6265-399-1, SAO 161374, 2MASS J18211489-1622318
Spectral type: B9Ia
Radial Velocity: km/s -30 (blueshifted)
Inset image of HD 168625 and HD 168607 at top right is from the Aladin Previewer website. In 2003, survey evidence showed that this pair of rare luminous late type B (early type A) hypergiants may indeed be a "physical pair", a determination reached after a spectroscopic monitoring survey of the stars was performed by E. L. Chentsov and E. S. Gorda (link is to the SpringerLink - Journal Article website and is a preview of the article only).
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BobinKy
Carpal Tunnel
Reged: 04/27/07
Posts: 1683
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Nice image. Adds a lot of realism to the photo inset.
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Bob
38°N
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K.Pinkela
member
Reged: 03/12/09
Posts: 43
Loc: Northern California
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Thank you for stopping in and for the kind words. I'm just starting to try my hand (paint brush, mouse) at stellar bodies like these and decided to add a bit of the science behind the effort.
Over the last 10 years or so, these two blue giants have seen a few revisions in the area of their distance and association to M17. However, they are currently estimated to be just around 2.2-2.8 kpc. They are a very interesting pair indeed (for those interested see: Spectral atlas of massive stars around He I 10830 A in .pdf format)
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Thomas44
super member
Reged: 10/26/09
Posts: 101
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Excellent work! It looks close to real.
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www.laserpointers.co.uk
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K.Pinkela
member
Reged: 03/12/09
Posts: 43
Loc: Northern California
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Thank you. Trying to better the ole paint brush regarding closeups like these.
Be good!
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orionthehunters
Pooh-Bah
Reged: 05/29/05
Posts: 2034
Loc: england
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Very nice work thanks for sharing with us all 
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Cloudy Nights Astro Art Moderator.
Astro Chat - Co Admin
LX90 mounted on HEQ5 goto Mount.
C8 Orange Tube 1970's
WO 90mm Apo+Heq5 Skyscan Mount
Meade DSI 2 C
Canon 350D+Toucam 3
ST4-Autoguider
http://www.freewebs.com/astroartuk/
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K.Pinkela
member
Reged: 03/12/09
Posts: 43
Loc: Northern California
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You're more than welcome, thanks for stopping in and having a peek.
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