Newest observations

Contact information

Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki

Ursa Astronomical Association

NGC 4051 - 16.3.2023 at 23.10 Ulvila, Kullaa Observation number 113568

Visibility III / V

Juha Ojanperä, Porin Karhunvartijat

NGC 4051 is an intermediate spiral galaxy in the Ursa Major. The galaxy has features of both a regular and a bar spiral galaxy. The galaxy was discovered by William Herschel on February 6, 1788.

Visually, the galaxy appeared as a roughly 5' x 2' oblong hazy and dim patch. The long axis of the galaxy is roughly northwest-southeast. An almost star-like central glow can be seen in the middle of the galaxy.

#Herschel 400

More similar observations
Additional information
  • Observation target
    • Deep space object
  • Designation
    • NGC 4051
  • Constellation
    • Ursa Major
  • Field of view
  • 10 arc minutes
  • Magnification
    • 120
  • Weather
    • Puolipilvistä, ei kuuta, lumi maassa, -5C, SQM: 20.49

  • Galaxies
    • Spiral galaxy info

      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.

Technical information

Telescope: N250/1200, eyepiece: Baader Hyperion 10 mm, visual observation, graphite and pencil drawing for deep sky observation card

Send a comment

Comments are checked and moderated before publication If you want to contact the observer directly about possibilities to use these images, use the Media -form.



characters left

By sending in this comment I confirm, that I've read and understood the the observation system's privacy policy.