Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Cygnus [1] |
Right ascension | 19h 31m 29.4966s [2] |
Declination | +41° 03′ 51.356″ [2] |
Apparent magnitude (V) | 16.88 [3] |
Characteristics | |
Spectral type | M1 V [4] |
Astrometry | |
Proper motion (μ) |
RA: 4.646(36)
mas/
yr
[2] Dec.: −21.589(36) mas/ yr [2] |
Parallax (π) | 2.5984 ± 0.0331 mas [2] |
Distance | 1,260 ± 20
ly (385 ± 5 pc) |
Details | |
Mass | 0.59 ± 0.06 [5] M☉ |
Radius | 0.55 ± 0.11 [5] R☉ |
Temperature | 3820 ± 90 [5] K |
Metallicity [Fe/H] | 0.13 ± 0.13 [5] dex |
Other designations | |
Database references | |
SIMBAD | data |
KIC | data |
Kepler-45, formerly known as KOI-254, is a star in the northern constellation of Cygnus. It is located at the celestial coordinates: right ascension 19h 31m 29.495s, declination +41° 03′ 51.37″. [6] With an apparent visual magnitude of 16.88, [4] this star is too faint to be seen with the naked eye.
The star is exhibiting strong starspot activity, with 4.1±2.5% of its surface covered by starspots. [7]
Companion (in order from star) |
Mass |
Semimajor axis ( AU) |
Orbital period ( days) |
Eccentricity | Inclination | Radius |
---|---|---|---|---|---|---|
b | 0.5505 MJ | 0.030 | 2.455239 | — | — | 11 R🜨 |
The "Hot Jupiter" class planet Kepler-45b, [9] discovered in February 2011, [10] is unusually massive for the M-class parent star. [11] Its orbit is aligned within 11 degrees of rotational axis of the star. [12]
The planet is strongly suspected to have optically thick rings, because its planetary shadow appears to be elongated. [13]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Cygnus [1] |
Right ascension | 19h 31m 29.4966s [2] |
Declination | +41° 03′ 51.356″ [2] |
Apparent magnitude (V) | 16.88 [3] |
Characteristics | |
Spectral type | M1 V [4] |
Astrometry | |
Proper motion (μ) |
RA: 4.646(36)
mas/
yr
[2] Dec.: −21.589(36) mas/ yr [2] |
Parallax (π) | 2.5984 ± 0.0331 mas [2] |
Distance | 1,260 ± 20
ly (385 ± 5 pc) |
Details | |
Mass | 0.59 ± 0.06 [5] M☉ |
Radius | 0.55 ± 0.11 [5] R☉ |
Temperature | 3820 ± 90 [5] K |
Metallicity [Fe/H] | 0.13 ± 0.13 [5] dex |
Other designations | |
Database references | |
SIMBAD | data |
KIC | data |
Kepler-45, formerly known as KOI-254, is a star in the northern constellation of Cygnus. It is located at the celestial coordinates: right ascension 19h 31m 29.495s, declination +41° 03′ 51.37″. [6] With an apparent visual magnitude of 16.88, [4] this star is too faint to be seen with the naked eye.
The star is exhibiting strong starspot activity, with 4.1±2.5% of its surface covered by starspots. [7]
Companion (in order from star) |
Mass |
Semimajor axis ( AU) |
Orbital period ( days) |
Eccentricity | Inclination | Radius |
---|---|---|---|---|---|---|
b | 0.5505 MJ | 0.030 | 2.455239 | — | — | 11 R🜨 |
The "Hot Jupiter" class planet Kepler-45b, [9] discovered in February 2011, [10] is unusually massive for the M-class parent star. [11] Its orbit is aligned within 11 degrees of rotational axis of the star. [12]
The planet is strongly suspected to have optically thick rings, because its planetary shadow appears to be elongated. [13]