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Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki

Ursa Astronomical Association

IC 1805 - 27.7.2016 at 00.20 - 27.7.2016 at 02.09 Tampere Observation number 54873

Visibility Unclassified

Jouni Raunio, Tampereen Ursa

The classic destination of autumn is still a bit awkward at this time of year. Even the eastern sky is still a little too bright. Something came off after all.

The picture can also be found here .

More similar observations
Additional information
  • Observation target
    • Deep space object
  • Designation
    • IC 1805
    • Luokittelematon
  • Constellation
    • Cassiopeia
  • Field of view
  • 2 degrees
  • Weather
    • Voimistuvaa tuulta, nopeita matalia irtopilvilauttoja ja nouseva Kuu.
  • Darkness
    • Mediocre
  • Seeing
    • Good
  • Nebulae
    • Emission nebula info

      In an emission nebula the hot stars nearby cause the gas glow. This should not mix with reflection nebula, where the gas is only lit up by nearby stars.

      The appearance of a gas nebula is irregular, and the fainter parts of it need bigger instruments to be visible.


      Emssion nebulae in Cepheus. The bigger part is composed of the nebulae Cederblad 214 (Ced214) and NGC 7822. The lower round nebula is called Sharpless 170 (Sh2-170). Image J-P Metsävainio.


      The Orion nebula. Image Samuli Vuorinen.


      In this 4-degree-field there are emission nebulae Sh2-157, Sh2-158, Sh2-159, Sh2-161 and Sh2-162 (or NGC 7635 aka Bubble Nebula) and open clusters M52 and NGC 7510. Image Juha Kepsu.


      NGC 281 aka Pacman Nebula. The object is in Cassiopeia. Image J-P Metsävainio.


      NGC 896 in Cassiopeia is the tip of Heart Nebula (IC 1805). Image Timo Inkinen.

Technical information

FSQ-106ED + QE 0.73x (f / 3.65) @ NEQ6Pro. Trius SX-694 + Lodestar OAG @ SXUFW. Astrodone 3nm H-alpha. Seletek Armadillo 2. Integration time total 1h 30min (9 * Ha 10min bin1). Image scale 2.41 "/ pixel and original FoV 88.6 x 110.8 arcmin.

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