In the course of my observations, I sometimes come across groups of stars that are interesting because of their shape. The stars in these asterisms do not have an overall physical relationship like the stars in an open cluster. Still, they are interesting to view. The list below contains asterisms that I have come across that are generally not mentioned in other lists (such as the one available from the Deep Sky Hunters Yahoo Group). All are fairly large and viewable through binoculars or a small telescope. In viewing the images of the asterisms in the list, the shape is sometimes more easily recognized if you step back a bit from the computer screen to view it. Positions and magnitudes of stars and estimated sizes of asterisms were extracted from Cartes du Ciel.
Identifier | Asterism Name | Brightest Star | Location1 | # Stars | Size2 | Image | Notes |
maas1 | Miku's Shimapan | HD197659 mag. 8.81 | Aquarius 20h45m24.1s -7°44m4.3s | approx. 20 | 19 × 14 | Challenging in 10 × 50 binoculars; Visible in Plate 49 of Ref. [1]; Three brightest stars and nearby star (HD 197577) share similar proper motions. | |
maas2 | Draco Dagger | HD169305 mag. 5.02 | Draco 18h21m32.6s 49°7m18.5s | 8 | 38 × 16 | Easily seen in 10 × 50 binoculars; Visible in Plate 12 of Ref. [1]. | |
maas3 | Stick Man | HD157486 mag. 6.14 | Scorpius 17h25m2.7s -34°41m46.1s | 8 to 10 | 34 × 27 | Easily seen in 10 × 50 binoculars; Visible in Plate 64 of Ref. [1]; Brightest 5 stars form "Mr. Q's Lost Sock" in Ref. [2]. |
1 Constellation and RA & Dec (J2000) of Brightest Star. |
2 Approximate Length × Width or Diameter in Arc-min. |
REFERENCES: |
[1] Mellinger, A., and R. Stoyan, Cambridge Photographic Star Atlas, Cambridge University Press, 2011. |
[2] List of Asterisms and Possible Open Clusters, Deep Sky Hunters Yahoo Group. |
Return to SOCO Data Page Return to SOCO Main Page
Questions or comments? Email SOCO@cat-star.org