Star NN Serpentis

Binary star NN Serpentis is located 1670 light years away from the Sun. It consists of a white dwarf and a red dwarf. There are multiple known exoplanets in this system.

NN Serpentis A

White dwarf

Spectral class: DAO1

Location

Right ascension: 15h 52m 56.131s

Declination: 12° 54' 44.68'' (equatorial region)

Parallax: 1.953

Sun distance: 1669.918 ly | 512 pc

Basic characteristic

Mass: 53.5 % M Sun

Size: 2.1 % R Sun | 0.2 R Jupiter

Temperature: 57000 K | 9.87 T Sun

NN Serpentis B

Red dwarf

Spectral class: M4V

Basic characteristic

Mass: 11.1 % M Sun

Size: 14.9 % R Sun | 1.5 R Jupiter

System structure

NN Serpentis A
	NN Serpentis B b	3.39 AU	724.8 M⊕	2830 days
	NN Serpentis B c	5.38 AU	2196.7 M⊕	5660 days
NN Serpentis B

More about NN Serpentis

       NN Serpentis can be found in northern celestial hemisphere.

Other designations of this star
NN Ser, PG 1550+131, WD 1550+130

External sources

Investigation on the Orbital Period Variations of NN Ser: Implications for the Hypothetical Planets, the Applegate Mechanism and the Orbital Stability

Scientific study, Accepted: 09. 10. 2023

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