Gliese 569 information

Gliese 569
	; An ultraviolet band light curve for a flare on CE Boötis, adapted from Hansen and Veeder (1977)
Observation data; Epoch J2000 Equinox J2000
Constellation	Boötes
	A
Right ascension	14h 54m 29.2362s
Declination	+16° 06′ 03.798″
Apparent magnitude (V)	10.15
	B
Right ascension	14h 54m 29.7686s
Declination	+16° 06′ 05.627″
Characteristics
BD+16 2708A
Evolutionary stage	main-sequence star
Spectral type	M3
Apparent magnitude (g)	9.12
Variable type	Flare star
BD+16 2708B
Spectral type	M8.5+M9
Apparent magnitude (g)	15.32
Astrometry
A
Radial velocity (Rv)	−8.00±0.17 km/s
Proper motion (μ)	RA: +279.12±0.02 mas/yr ; Dec.: −117.91±0.02 mas/yr
Parallax (π)	100.5243 ± 0.0210 mas
Distance	32.446 ± 0.007 ly ; (9.948 ± 0.002 pc)
Orbit
Primary	GJ 569Ba
Companion	GJ 569Bb
Period (P)	863.7±4.2 d
Semi-major axis (a)	0.89±0.02 AU
Eccentricity (e)	0.312±0.007
Inclination (i)	32.4±1.3°
Details
Gliese 569A
Mass	0.48 M☉
Radius	0.43 R☉
Rotation	14.7 d
Age	<700 Myr
Gliese 569B
Mass	0.081+0.059 M☉
Radius	1.69+1.28 RJup
Temperature	2000+2000 K
Rotational velocity (v sin i)	19+6 km/s
Age	<700 Myr
Other designations
	Gliese 569, BD+16 2708, G 136-28, GSC 01478-00495, HIP 72944, 2MASS J14542923+1606039, TYC 1478-495-1, CE Boötis, WDS J14545+1606
Database references
SIMBAD	data
	B

Gliese 569 is a ternary star system composed of a main-sequence star orbited by a pair of brown dwarfs in the constellation of Boötes about 32 light years away.

^ Cite error: The named reference Hansen was invoked but never defined (see the help page).
^ ^a ^b ^c ^d ^e Cite error: The named reference EDR3A was invoked but never defined (see the help page).
^ Cite error: The named reference Koen_et_al_2010 was invoked but never defined (see the help page).
^ ^a ^b ^c Cite error: The named reference EDR3B was invoked but never defined (see the help page).
^ Cite error: The named reference gcvs was invoked but never defined (see the help page).
^ ^a ^b ^c ^d ^e Cite error: The named reference Konopacky2012 was invoked but never defined (see the help page).
^ Cite error: The named reference Simon2006 was invoked but never defined (see the help page).
^ Cite error: The named reference lund was invoked but never defined (see the help page).
^ Cite error: The named reference Femenía was invoked but never defined (see the help page).
^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).

[Hansen-1] Cite error: The named reference Hansen was invoked but never defined (see the help page).

[EDR3A-2] Cite error: The named reference EDR3A was invoked but never defined (see the help page).

[Koen_et_al_2010-3] Cite error: The named reference Koen_et_al_2010 was invoked but never defined (see the help page).

[EDR3B-4] Cite error: The named reference EDR3B was invoked but never defined (see the help page).

[gcvs-5] Cite error: The named reference gcvs was invoked but never defined (see the help page).

[Konopacky2012-6] Cite error: The named reference Konopacky2012 was invoked but never defined (see the help page).

[Simon2006-7] Cite error: The named reference Simon2006 was invoked but never defined (see the help page).

[lund-8] Cite error: The named reference lund was invoked but never defined (see the help page).

[Femenía-9] Cite error: The named reference Femenía was invoked but never defined (see the help page).

[SIMBAD-10] Cite error: The named reference SIMBAD was invoked but never defined (see the help page).

Observation data Epoch J2000 Equinox J2000
An ultraviolet band light curve for a flare on CE Boötis, adapted from Hansen and Veeder (1977)^[1]
Constellation	Boötes
A
Right ascension	14^h 54^m 29.2362^s^[2]
Declination	+16° 06′ 03.798″^[2]
Apparent magnitude (V)	10.15^[3]
B
Right ascension	14^h 54^m 29.7686^s^[4]
Declination	+16° 06′ 05.627″^[4]
Characteristics
BD+16 2708A
Evolutionary stage	main-sequence star
Spectral type	M3
Apparent magnitude (g)	9.12^[2]
Variable type	Flare star^[5]
BD+16 2708B
Spectral type	M8.5+M9^[6]
Apparent magnitude (g)	15.32^[4]
Astrometry
A
Radial velocity (R_v)	−8.00±0.17 km/s
Proper motion (μ)	RA: +279.12±0.02 mas/yr^[2] Dec.: −117.91±0.02 mas/yr^[2]
Parallax (π)	100.5243 ± 0.0210 mas^[2]
Distance	32.446 ± 0.007 ly (9.948 ± 0.002 pc)

Orbit^[7]
Primary	GJ 569Ba
Companion	GJ 569Bb
Period (P)	863.7±4.2 d
Semi-major axis (a)	0.89±0.02 AU
Eccentricity (e)	0.312±0.007
Inclination (i)	32.4±1.3°
Details^[8]
Gliese 569A
Mass	0.48 `M`_☉
Radius	0.43 `R`_☉
Rotation	14.7 d
Age	<700^[6] Myr
Gliese 569B
Mass	0.081+0.059^[9] `M`_☉
Radius	1.69+1.28 R_Jup
Temperature	2000+2000^[6] K
Rotational velocity (v sin i)	19+6^[6] km/s
Age	<700^[6] Myr
Other designations
Gliese 569, BD+16 2708, G 136-28, GSC 01478-00495, HIP 72944, 2MASS J14542923+1606039, TYC 1478-495-1, CE Boötis, WDS J14545+1606^[10]
Database references
SIMBAD	data
	B

Gliese 569 information

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