CoRoT-4

Star in the constellation Monoceros

CoRoT-4
Observation data Epoch J2000 Equinox J2000
Constellation	Monoceros
Right ascension	06^h 48^m 46.7134^s^[1]
Declination	−00° 40′ 21.9695″^[1]
Apparent magnitude (V)	13.45^[2]
Characteristics
Spectral type	F8V^[2]
Apparent magnitude (R)	13.42^[3]
Apparent magnitude (J)	12.619 ±0.026^[3]
Apparent magnitude (H)	12.359 ±0.029^[3]
Apparent magnitude (K)	12.29 ±0.03^[3]
R−I color index	13.531 [0.019]^[3]
Astrometry

Proper motion (μ)	RA: −3.659±0.049^[1] mas/yr Dec.: −3.898±0.044^[1] mas/yr
Parallax (π)	1.3484 ± 0.0280 mas^[1]
Distance	2,420 ± 50 ly (740 ± 20 pc)

Details

Mass	1.16^+0.03 _−0.02^[4] `M`_☉
Radius	1.17^+0.01 _−0.03^[4] `R`_☉
Temperature	6190 ± 60^[4] K
Metallicity	[Fe/H] = 0 ± 0.15^[2]
Rotation	8.87 ± 1.12 d^[5]
Rotational velocity (v sin i)	6.4 ± 1.0^[4] km/s
Age	1^+1.0 _−0.3 Gyr^[4] years

Other designations
GSC 04800-02187, GSC2 S1002103169, UCAC2 31467163, CoRoT-Exo-4, 2MASS J06484671-0040219, USNO-B1.0 0893-00105986
Database references
SIMBAD	data

CoRoT-4 (formerly known as CoRoT-Exo-4^[6]) is a yellow-white dwarf main-sequence star in the constellation Monoceros.^[3]

Planetary system

The star is orbited by one known extrasolar planet, designated CoRoT-4b. It was catalogued as part of the CoRoT mission to find transiting planets, when a planet was spotted using the transit method.^[5]

The CoRoT-4 planetary system
Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius
b	0.72 ± 0.08 M_J	0.090 ± 0.001	9.20205 ± 0.00037	0	—	—

References

^ ^a ^b ^c ^d ^e Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
^ ^a ^b ^c Schneider, J. "Notes for star CoRoT-4". Extrasolar Planets Encyclopaedia. Archived from the original on August 19, 2009. Retrieved 2009-03-19.
^ ^a ^b ^c ^d ^e ^f "CoRoT-4". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2009-04-27.
^ ^a ^b ^c ^d ^e Montou, C.; et al. (2008). "Transiting exoplanets from the CoRoT space mission V. CoRoT-Exo-4b: Stellar and planetary parameters". Astronomy & Astrophysics Letters. 488 (2): L47–L50. arXiv:0807.3739. Bibcode:2008A&A...488L..47M. doi:10.1051/0004-6361:200810273. S2CID 118658022.
^ ^a ^b Aigrain, S.; et al. (2008). "Transiting exoplanets from the CoRoT space mission IV. CoRoT-Exo-4b: a transiting planet in a 9.2 day synchronous orbit". Astronomy & Astrophysics Letters. 488 (2): L43–L46. arXiv:0807.3767. Bibcode:2008A&A...488L..43A. doi:10.1051/0004-6361:200810246. S2CID 115916135.
^ Schneider, J. (2009-03-10). "Change in CoRoT planets names". Exoplanets (Mailing list). Archived from the original on 2010-01-18. Retrieved 2009-03-19.

External links

"CoRot-4". Exoplanets. Archived from the original on 2016-03-03. Retrieved 2009-04-28.

Constellation of Monoceros

Stars

Bayer	α β γ δ ε ζ
Flamsteed	1 2 3 6 7 9 10 12 13 14 16 17 18 19 20 21 23 24 25 27 28 77 Ori 78 Ori
Variable	R S (15) T U V RU RW SV TU UX VV VY AO AR AU AX BE BN BT BX CL CS CV CW DD FU GI IM PZ V372 V396 V474 V505 V569 V577 V578 V582 V588 V589 V590 V592 V614 V616 V638 V640 V641 V644 V653 V682 V684 V689 V694 V695 V696 V700 V715 V721 V723 V728 V731 V739 V743 V750 V753 V827 V838 V926
HR	2150 2154 2179 2205 2224 2234 2237 2267 2270 2280 2292 2300 2313 2317 2321 2324 2325 2328 2333 2342 2347 2355 2367 2370 2375 2378 2381 2386 2395 2406 2409 2418 2426 2430 2440 2458 2461 2467 2469 2474 2479 2502 2508 2514 2521 2530 2543 2551 2555 2570 2572 2577 2582 2584 2589 2599 2606 2610 2613 2624 2627 2636 2639 2647 2655 2656 2663 2676 2694 2731 2732 2739 2752 2765 2806 2807 2811 2833 2865 2866 2867 2876 2883 2920 2958 3014 3047 3054 3072 3150 3172 3174 3189
HD	42132 44179 44219 45090 45166 45215 45652 (Lusitânia) 46149 46150 46202 46223 46375 46966 48099 50064 50138 50281 52265 (Citalá) 65938 66428
Other	A0620-00 AFGL 961 CoRoT-1 CoRoT-4 CoRoT-5 CoRoT-7 CoRoT-12 CoRoT-13 CoRoT-14 CoRoT-15 CoRoT-18 CoRoT-19 CoRoT-20 CoRoT-21 CoRoT-24 Gliese 282 Monoceros R2 IRS 3 NGC 2264 IRS 1 Ross 614 Scholz's SCR 0640−0552 UGPS J0652+0324 UGPS J0722−0540

Exoplanets	CoRoT-1b CoRoT-4b CoRoT-5b CoRoT-7b CoRoT-7c CoRoT-7d CoRoT-12b CoRoT-13b CoRoT-14b CoRoT-15b CoRoT-18b CoRoT-19b CoRoT-20b CoRoT-20c CoRoT-21b CoRoT-24b CoRoT-24c HD 44219 b HD 45652 b (Viriato) HD 46375 b HD 52265 b (Cayahuanca)