Supernova 2021rhu - 7.8.2021 at 00.30 - 7.8.2021 at 01.00 Janakkala, Tervakoski Observation number 100311

Visibility III / V

Petri Kuossari, Riihimäen tähtit. yhdistys

The deep sky season finally started. A type la supernova 2021rhu found in the constellation of Pegasus in July

This supernova is found in the galaxy NGC 7814. Much like the Sombero galaxy in appearance.

At the same time came the admirable Jupiter and Saturn, the Milky Way already stood out, and the first dim dim northern lights of the season.

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Additional information

Observation target
- Supernova
Constellation
- Pegasus
Darkness
- Average
Galaxies
- Spiral galaxy
  
  Spiral galaxy is a stellar system where there are outwards arched spiral arms from roundish (spiral galaxies) or bar-shaped (barred spiral galaxies) central condensation.
  
  The apparent shape of spiral galaxied depends on out observation direction. From above they are quite round. From the side they lens-shaped with a bulge in the middle.
  
  Generally a rather large instrument, good weather conditions and observational expereince are needed to see spiral arms. Usually spiral galaxies look like a fuzzy spots.
  
  Spiral galaxy M33 in Triangulum. Image Tero Turunen.
  
  Andromeda Galaxy M31. There are also galaxies M110 (upper right corner) and M32 (lower left corner) in this image. Image Pekka Peura.
  
  M101 aka Pinwheel Galaxy in Ursa Major. Image Samuli Vuorinen.
  
  Spiral galaxy IC 342 aka Hidden Galaxy in Camelopardalis. Image Timo Inkinen.
  
  A sketch of spiral galaxy NGC 7331 in Pegasus. Image Juha Ojanperä.

Designation
- 2021rhu
Brightness in magnitudes
- 12.8

Technical information

eVscope

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Supernova 2021rhu - 7.8.2021 at 00.30 - 7.8.2021 at 01.00 Janakkala, Tervakoski Observation number 100311