Kruger 60
Binary star system in the constellation Cepheus / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about Kruger 60?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
Krüger 60 (DO Cephei) is a binary star system located 13.1 light-years (4.0 parsecs) from the Sun. These red dwarf stars orbit each other every 44.6 years.
This article needs additional citations for verification. (October 2019) |
Quick Facts Observation data Epoch J2000 Equinox, Apparent magnitude (V) ...
Observation data Epoch J2000 Equinox | |
---|---|
Constellation | Cepheus |
Krüger 60 A | |
Right ascension | 22h 27m 59.55755s[2] |
Declination | +57° 41′ 42.0806″[2] |
Apparent magnitude (V) | 9.59[citation needed] |
Krüger 60 B | |
Right ascension | 22h 27m 59.79560s[3] |
Declination | +57° 41′ 49.7468″[3] |
Apparent magnitude (V) | 11.40[citation needed] |
Characteristics | |
Spectral type | M3V/M4V[4] |
U−B color index | 1.27/1.3[citation needed] |
B−V color index | 1.65/1.8[citation needed] |
Variable type | None/Flare star |
Astrometry | |
Krüger 60 A | |
Radial velocity (Rv) | –33.1[citation needed] km/s |
Proper motion (μ) | RA: −725.227±0.537[2] mas/yr Dec.: −223.461±0.348[2] mas/yr |
Parallax (π) | 249.3926 ± 0.1653 mas[2] |
Distance | 13.078 ± 0.009 ly (4.010 ± 0.003 pc) |
Absolute magnitude (MV) | 11.76 |
Krüger 60 B | |
Radial velocity (Rv) | –31.9[citation needed] km/s |
Proper motion (μ) | RA: −934.098±1.319[3] mas/yr Dec.: −686.244±1.410[3] mas/yr |
Parallax (π) | 249.9668 ± 0.7414 mas[3] |
Distance | 13.05 ± 0.04 ly (4.00 ± 0.01 pc) |
Absolute magnitude (MV) | 13.46 |
Details | |
Krüger 60 A | |
Mass | 0.271[5] M☉ |
Radius | 0.35[6] R☉ |
Luminosity | 0.010[citation needed] L☉ |
Temperature | 3,180[citation needed] K |
Metallicity | –0.04[7] |
Krüger 60 B | |
Mass | 0.176[5] M☉ |
Radius | 0.24[6] R☉ |
Luminosity | 0.0034[citation needed] L☉ |
Temperature | 2,890[citation needed] K |
Orbit[8] | |
Primary | Krüger 60 A |
Companion | Krüger 60 B |
Period (P) | 44.67 yr |
Semi-major axis (a) | 2.383″ |
Eccentricity (e) | 0.410 |
Inclination (i) | 167.2° |
Longitude of the node (Ω) | 154.5° |
Periastron epoch (T) | 1970.22 |
Argument of periastron (ω) (primary) | 211.0° |
Other designations | |
Database references | |
SIMBAD | The system |
A | |
B | |
Location of Krüger 60 in the constellation Cepheus |
Close