NGC 3195

NGC 3195 (also known as Caldwell 109) is a planetary nebula located in the southern constellation of Chamaeleon. Discovered by Sir John Herschel in 1835,^[3] this 11.6 apparent magnitude^[3] planetary nebula is slightly oval in shape, with dimensions of 40×35 arc seconds, and can be seen visually in telescopic apertures of 10.5 centimetres (4.1 in) at low magnifications.^[5]

NGC 3195

Emission nebula
Planetary nebula
A Hubble Space Telescope (HST) image of NGC 3195. Credit: HST/NASA/ESA.
Observation data: J2000 epoch
Right ascension	10h 09m 20.910s[1]
Declination	−80° 51′ 30.73″[1]
Distance	6,440 ly (1,975 pc)[2] ly
Apparent magnitude (V)	11.6[3]
Apparent dimensions (V)	1.33′[2]
Constellation	Chamaeleon
Designations	Caldwell 109, Hen 2-44, Sa2-57, PK 296-20.1, PN G296.6-20.0, ESO 19-2[4]
See also: Lists of nebulae

Spectroscopy reveals that NGC 3195 is approaching Earth at 17 kilometres per second (11 mi/s), while the nebulosity is expanding at around 40 kilometres per second (25 mi/s). The central star is listed as >15.3V or 16.1B magnitude. An analysis of Gaia data suggests that the central star is a binary system.^[6] Distance is estimated at 1.7 kpc.