deeplook.at

Astrophotography from Ursa Major Observatory @ ROSA

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deeplook.at
deeplook.at
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!
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SNR HB 3 (G 132.7+1.3) in Cassiopeia
Supernova Remnant
~ 80’ (Green 2014)
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Cas
2018-11-18+24 + 2018-12-11+12+14+25+26+27+28+29+31 2019-01-01+02+03+07+10+11+15
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.
“Mizar” Takahashi Epsilon 130ED, f/D = 3.3 G2-8300 Moravian, Baader LRGB + narrowband filter
~6500 - 7800 ly