Telscope & Camera:
Exposure time total:
10micron GM2000 HPS II, no guiding
[OIII] 145x10min / Ha 89x10min /
L 19x10min / RGB 18x10min per filter
51 h 10 min
data acquired remotely using CCD Commander
The object was proposed by Sakib Rasool - thank you!
SNR HB 3 (G 132.7+1.3) in Cassiopeia
~ 80’ (Green 2014)
2018-11-18+24 + 2018-12-11+12+14+25+26+27+28+29+31
The supernova remnant is located just west of the famous "Heart Nebula".
HB 3 interacts with the molecular cloud W3 (to which NGC 896 belongs).
Therefore, a similar distance can be assumed.
The age of HB 3 is about 300,000 years.
Takahashi Epsilon 130ED, f/D = 3.3
G2-8300 Moravian, Baader LRGB + narrowband filter
~6500 - 7800 ly