UGC 5139  -  wide field

70%  resolution (4.4MB)

Object identification (4.4MB)

Image with 12" Newtonian (f=1120mm)

Object data of UGC5139

Object type: Dwarf Galaxy (dIrr)
Size: 3.6' x 3.0'
Magnitude: 13.1 mag
Constellation: UMa
Distance: 12.5 Mio Ly
Notes: UGC 5139, also named Holmberg I after its discoverer, is a dwarf galaxy in the constellation of Ursa Major, about 12.5 million light-years away from Earth.

Exposure data

Date: 2022-03-26 until 2022-05-02 (6 nights)
Location: Nussbach / Austria (400m)
Telescope: Takahashi FSQ-106ED (4" Apo f=530mm)
Camera: Nikon Z6 (ISO 400)
Mount: ASA DDM85
Exposure time: 108x6min
Exposure time total: 10h48min