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Exposure data
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Ursa Major obs. @ ROSA (remote observatory southern alps)
“Alkor”
Lacerta N25010c Newtonian, f/D = 4
SX Trius 694, Baader LRGB filter
10micron GM2000 HPS II, unguided
Ha+[NII] 115x10min / [OIII] 63x10min /
L 36x10min / RGB 31x10min per filter
51 h 10 min
data acquired remotely using CCD Commander
- CEDIC Team goes Chile II
- CEDIC Team goes La Palma I
- CEDIC Team goes La Palma II
- CEDIC Team goes La Palma III
- CEDIC Team goes Namibia
- Namibia 2022 - Intro
- #1 - Clusters in Carina
- #2 - Hidden Treasures in Vela
- #3 - Southern Galaxies
- #4 - Emission Nebulae in Centaurus
- #5 - Near South Pole
- #6 - Dark Nebulae in Cir & Lup
- #7 - Nebulae in Ara & Norma
- #8 - Nebulae in Scorpius
- #9 - Open Clusters in Scorpius
- #10 - Highlights in Sagittarius
- #11 - Nebulae in Ophiuchus
Sh2- 174 in Cepheus
Emission nebula
~ 20’
Cepheus
2018-07-30+31 +
2018-08-01+02+07+11+12+14+17+18+24+26+27 + 09-01+02+03+04
~ 900 ly
The object is probably not a PN. Rather it is the case that the white dwarf
GD 561 is crossing a gas cloud and ionizes the surrounding gas.