(IAAC) Obj: Stargate, Delta wing Starship, Star 20 - Inst: Tal 200K Klevtzov-Cassegrain

Observation Poster: Math Heijen <mm94@planet.nl>
Observer: Math Heijen
Your skills: Intermediate (some years)
Date/time of observation: 18-04-2003, 21.00 UT
Location of site: Landgraaf (Lat 50.55N, Elev 06.03E)
Site classification: Suburban
Sky darkness: 5 <Limiting magnitude>
Seeing: 6 <10-1 Seeing Scale (1 best)>
Moon presence: None - moon not in sky
Instrument: Tal 200K Klevtzov-Cassegrain
Magnification: 62.5, 80, 100, 133, 166
Filter(s): None
Object(s): Stargate, Delta wing Starship, Star 20
Category: Asterism.
Constellation: Corvus
Data: mag   size 
Position: RA 12:35  DEC -12:01
Star 20 from Phil Harrington's "The Deep Sky, an Introduction" 
Also known as Stargate or Delta-Wing Starship.
 A triange within a triangle. A beautiful sight and easy to find.
 From Delta Corvi move to Eta Corvi. Center Eta Corvi in your field of view. 
Go North for about 3 degrees. and you will see a triangle of stars in your finderscope. The point of the triangle points in the direction of two fainter stars, which stand close together. They can just be detected in a my 8x50 finderscope.
These two stars are the two brightest of Star 20, an asterism of 6 stars.
magnitude ranging from 7 to 11.
A sketch and finder-chart can be found on my website 
in the "astro-weblog" and "the Deepsky" logs.
Optional related URLs: http://www.backyard-astro.com
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