Image of the Week
Soul Nebula
Sh2-200
SNR G132.7+01.3
Pleiades
Great Star Cluster in Hercules
M63 - Sunflower Galaxy
M31 - Andromeda Galaxy
NGC 896 - Fish Head Nebula
M31
M33 - Triangulum Galaxy
sh2-224
m52
NGC 7635 (Bubble Nebula)
Coma Galaxy Cluster
SNR G156.2+05.7
Andromeda Galaxy
M16 - Eagle Nebula
SNR G13.3-1.3 in M24 - Constellation of Sagittarius
Sh2-146
Sh2-144
Sh2-180
Sh2-188
NGC6871 + NGC6883
Soul Nebula
Pleiades
Sh2-200
LBN 674, Sh2-200
Sh2-200, also called HDW 2 or the Bearclaw Nebula, is a very faint, evolved planetary nebula in Cassiopeia - not a star-forming H II region, despite its inclusion in the Sharpless catalog. Its distinctive features are a roughly circular inner nebula, about 6 to 8 arcminutes, crossed by dark-looking lanes and a much larger, extremely faint outer halo (extends out to an angular size of 40 arcminutes). Interestingly, the origin of the outer halo is unknown; it may be interstellar gas ionized by the central star or possibly material ejected by the star when it was still in a red giant phase. Note that both the PN and halo show parallel stripes perpendicular to the galactic plane from interaction with the galactic magnetic field. Distance estimates place it about 3600 LYs away.
The open cluster, sitting above the central PN, is Collinder 36 and not associated with the PN.
Acquisition
- Telescope
- Stellarvue SVX080TR-LE
- Camera
- OGMA AP26MC
- Location
- SFO
- Dates
- 10-20,21,23-2026
- Processing
- PixInsight and Affinity Photo
Filters
| Ha | 159 × 300s | 13.3 hr | |
|---|---|---|---|
| OIII | 144 × 300s | 12 hr | |
| Total integration | 25.3 hr |
Image details
- Field
- 3,996 × 3,996 px
- Pixel scale
- 1.54"/px
- Focal length
- 505 mm
- RA
- 03h 11m 00s
- Dec
- +62° 47′ 33″
Comments 1
Loading comments…