PN LoTr 5  -  wide field

80%  resolution (3.6MB)

Object identification (3.6MB)

Image with 12" Newtonian (f=1120mm)

Object data of PN LoTr 5

Object type: Planetary nebula
Size: 8.7'
Magnitude: -
Constellation: Com
Distance: 1,650 Ly
Notes: PN LoTr 5 (Longmore-Tritton 5) is a large, faint planetary nebula in the constellation of Coma Berenices in a distance of 1,650 light-years.

The central system at LoTr 5 is a binary star, which consists of an evolved G-type star (IN Comae Berenices) and a hot white dwarf that is responsible for ionizing the nebula. The white dwarf is one of the hottest stars known, with an effective temperature of about 150,000 K.

IN Comae Berenices is known to be a variable star, with its brightness varying on a cycle that is about 5.9 days long. This corresponds to the rotation period of the star, and the variability is attributed to starspots.

LoTr 5 has the highest galactic latitude of any known planetary nebula, being only 1.5 degrees away from the galactic north pole.

Exposure data

Date: 2021-04-04 until 2021-04-11 (3 nights)
Location: Nussbach / Austria (400m)
Telescope: Takahashi FSQ-106ED (4" Apo f=530mm)
Camera: Nikon Z6 (ISO 400)
Mount: ASA DDM85
Exposure time: 51x6min
Exposure time total: 5h06min