Alpha Pictoris information

α Pictoris
	Location of α Pictoris (circled)
Observation data; Epoch J2000 Equinox J2000
Constellation	Pictor
Right ascension	06h 48m 11.45512s
Declination	−61° 56′ 29.0008″
Apparent magnitude (V)	3.27
Characteristics
Spectral type	A8 Vn kA6
U−B color index	+0.13
B−V color index	+0.21
Astrometry
Radial velocity (Rv)	+20.6 km/s
Proper motion (μ)	RA: –66.07 mas/yr ; Dec.: +242.97 mas/yr
Parallax (π)	33.78 ± 1.78 mas
Distance	97 ± 5 ly ; (30 ± 2 pc)
Absolute magnitude (MV)	0.86
Orbit
Period (P)	1618+1407; −325 days
Semi-major axis (a)	36+15; −2 mas
Eccentricity (e)	0.39+0.35; −0.17
Inclination (i)	118±3°
Longitude of the node (Ω)	24±5°
Periastron epoch (T)	953+707; −640
Argument of periastron (ω); (secondary)	92+22; −44°
Details
Mass	2.04 M☉
Radius	1.6 R☉
Luminosity	13 L☉
Surface gravity (log g)	3.48 cgs
Temperature	7530 K
Metallicity [Fe/H]	–0.11 dex
Rotational velocity (v sin i)	206 km/s
Age	660 Myr
Other designations
	CD-61°1478, Gl 248, HD 50241, HIP 32607, HR 2550, LTT 2656, SAO 249647.
Database references
SIMBAD	data

Alpha Pictoris (α Pic, α Pictoris) is the brightest star in the southern constellation of Pictor. It has an apparent visual magnitude of 3.27,^[2] which is bright enough to be viewed from urban areas in the southern hemisphere. This star is close enough for its distance to be measured using parallax shifts, which yields a value of roughly 97 light-years (30 parsecs) from the Sun, with a 5% margin of error.^[1] Alpha Pictoris has the distinction of being the south pole star of the planet Mercury.^[14]

^ ^a ^b ^c ^d ^e ^f Cite error: The named reference aaa474_2_653 was invoked but never defined (see the help page).
^ ^a ^b ^c ^d Cite error: The named reference clpl4_99 was invoked but never defined (see the help page).
^ ^a ^b Cite error: The named reference aj132_1_161 was invoked but never defined (see the help page).
^ Cite error: The named reference gcsr was invoked but never defined (see the help page).
^ ^a ^b Cite error: The named reference aaa361_614 was invoked but never defined (see the help page).
^ Cite error: The named reference apjss166_1_341 was invoked but never defined (see the help page).
^ Cite error: The named reference aaa367_521 was invoked but never defined (see the help page).
^ Cite error: The named reference aass85_3_1015 was invoked but never defined (see the help page).
^ ^a ^b Cite error: The named reference aaa408 was invoked but never defined (see the help page).
^ Cite error: The named reference aaa463 was invoked but never defined (see the help page).
^ Cite error: The named reference apj653 was invoked but never defined (see the help page).
^ Cite error: The named reference apj546 was invoked but never defined (see the help page).
^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
^ Cite error: The named reference moore2007 was invoked but never defined (see the help page).

[aaa474_2_653-1] ^ ^a ^b ^c ^d ^e ^f Cite error: The named reference aaa474_2_653 was invoked but never defined (see the help page).

[clpl4_99-2] Cite error: The named reference clpl4_99 was invoked but never defined (see the help page).

[aj132_1_161-3] Cite error: The named reference aj132_1_161 was invoked but never defined (see the help page).

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

[aaa361_614-5] Cite error: The named reference aaa361_614 was invoked but never defined (see the help page).

[apjss166_1_341-6] Cite error: The named reference apjss166_1_341 was invoked but never defined (see the help page).

[aaa367_521-7] Cite error: The named reference aaa367_521 was invoked but never defined (see the help page).

[aass85_3_1015-8] Cite error: The named reference aass85_3_1015 was invoked but never defined (see the help page).

[aaa408-9] Cite error: The named reference aaa408 was invoked but never defined (see the help page).

[aaa463-10] Cite error: The named reference aaa463 was invoked but never defined (see the help page).

[apj653-11] Cite error: The named reference apj653 was invoked but never defined (see the help page).

[apj546-12] Cite error: The named reference apj546 was invoked but never defined (see the help page).

[SIMBAD-13] Cite error: The named reference SIMBAD was invoked but never defined (see the help page).

[moore2007-14] Cite error: The named reference moore2007 was invoked but never defined (see the help page).

Observation data Epoch J2000 Equinox J2000
Location of α Pictoris (circled)
Constellation	Pictor
Right ascension	06^h 48^m 11.45512^s^[1]
Declination	−61° 56′ 29.0008″^[1]
Apparent magnitude (V)	3.27^[2]
Characteristics
Spectral type	A8 Vn kA6^[3]
U−B color index	+0.13^[2]
B−V color index	+0.21^[2]
Astrometry

Radial velocity (R_v)	+20.6^[4] km/s
Proper motion (μ)	RA: –66.07^[1] mas/yr Dec.: +242.97^[1] mas/yr
Parallax (π)	33.78 ± 1.78 mas^[1]
Distance	97 ± 5 ly (30 ± 2 pc)
Absolute magnitude (M_V)	0.86^[5]

Orbit^[6]
Period (P)	1618+1407 −325 days
Semi-major axis (a)	36+15 −2 mas
Eccentricity (e)	0.39+0.35 −0.17
Inclination (i)	118±3°
Longitude of the node (Ω)	24±5°
Periastron epoch (T)	953+707 −640
Argument of periastron (ω) (secondary)	92+22 −44°
Details

Mass	2.04^[5] `M`_☉
Radius	1.6^[7] `R`_☉
Luminosity	13^[8] `L`_☉
Surface gravity (log g)	3.48^[9] cgs
Temperature	7530^[9] K
Metallicity [Fe/H]	–0.11^[3] dex
Rotational velocity (v sin i)	206^[10] km/s
Age	660^[11]^[12] Myr

Other designations
CD-61°1478, Gl 248, HD 50241, HIP 32607, HR 2550, LTT 2656, SAO 249647.^[13]
Database references
SIMBAD	data

Alpha Pictoris information

and 25 Related for: Alpha Pictoris information

Alpha Pictoris

Beta Pictoris

Pictor

Pole star

Denebola

List of brightest natural objects in the sky

Vega

Alpha Circini

Thuban

Polaris

Methods of detecting exoplanets

List of directly imaged exoplanets

Stellar kinematics

Planetary system

Microscopium

Very Large Telescope

Codex Usserianus Primus

Ursa Major moving group

Telescopium

Protoplanetary disk

Brown dwarf

Main sequence

Extraterrestrial sky

Comet

Stellar association