From GalaxyMap:
According to a 1989 study, Sh 2-247 is part of the Gem OB1 association, contains 37 thousand solar masses of gas and dust at a distance of 2200 pc, and appears to be physically connected through CO filaments with Sh 2-252. It is ionised by the B0 III giant LS V +21 27.
Avedisova places Sh 2-247 in the complex star formation region SFR 188.93+0.79 with 51 components, including 9 masers, several infrared star clusters, at least 4 molecular clouds, and the young stellar object IRAS 06058+2138. In 1984 she gave a 3500 pc distance estimate but corrected this to 2000 pc in 1989.
GENERAL NOTE ON SHARPLESS2 OBJECTS>>>>>>>>>>>>>
I have been on a project for several years now to image all the Sharpless2 Objects that I can see from my location near San Francisco. I chose these because they are visible in light polluted areas. These objects generally represent left over Hydrogen along the edge of the Milky Way that has gotten molded into interesting shapes.
There are 313 Sh2 objects and those below 70 and above 283 are generally too low on the horizon for me to image... this leaves me 213 that are feasible... and I have imaged all of these but 25. 13 of these are too big for my system. So 12 to go.
Many were taken with my old Tak 180 ED, which had a wide field of view, but was replaced with my Stellarvue 130, which is more narrow field.
This is my collection:
Sharpless2Please note there is also a Sharpless2 Group with now more than 1000 examples.
Hope you enjoy these obscure but interesting objects...
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