AE Pictoris

AE Pictoris

A light curve for AE Pictoris, adapted from Pedersen et al. (2019)[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Pictor
Right ascension 06h 31m 10.63900s[2]
Declination −61° 52′ 46.3515″[2]
Apparent magnitude (V) 6.14[3]
Characteristics
Spectral type B3V[4]
B−V color index −0.147±0.006[5]
Variable type Eclipsing binary[6]
Astrometry
Radial velocity (Rv)34.0±7.4[5] km/s
Proper motion (μ) RA: −9.142[2] mas/yr
Dec.: +12.087[2] mas/yr
Parallax (π)2.2770 ± 0.0678 mas[2]
Distance1,430 ± 40 ly
(440 ± 10 pc)
Absolute magnitude (MV)1.73[5]
Orbit[7]
Period (P)2.9723 d
Eccentricity (e)0.10
Periastron epoch (T)2,431,998.871 JD
Argument of periastron (ω)
(secondary)		39.0°
Semi-amplitude (K1)
(primary)		119.0 km/s
Details
Mass7.1±0.1[8] M☉
Luminosity (bolometric)2,569[9] L☉
Temperature18,700[9] K
Rotation1.490911 d[10]
Age27.7±1.4[8] Myr
Other designations
AE Pic, CD−61°1394, HD 46792, HIP 31068, HR 2410, SAO 249572[11]
Database references
SIMBADdata

AE Pictoris is an eclipsing binary[6] star system in the southern constellation of Pictor. This dim, blue-white hued point of light is just barely visible to the naked eye; it has an apparent visual magnitude of 6.09, which drops to magnitude 6.14 during an eclipse.[12] The system is located around 1,430 light years away from the Sun based on parallax,[2] and it is receding with a radial velocity of 34 km/s.[13]

This is a single-lined spectroscopic binary system with an orbital period of 2.97 days and an eccentricity of 0.10. The minimum value of the semimajor axis for the pair is 4.8 Gm (6.9 R☉).[7] It is classed as a probable eclipsing binary variable (EB:), but with some uncertainty regarding the specific type.[6] This is a candidate runaway star system, having a peculiar velocity of 24.9+4.9
−5.1 km/s relative to its neighbors.[8] The visible component is a B-type main-sequence star with a stellar classification of B3V.[4] it is 28 million years old with seven[8] times the mass of the Sun. The star is radiating 2,569 times the luminosity of the Sun from its photosphere at an effective temperature of 18,700 K.[9]

  1. ^ Cite error: The named reference Pedersen was invoked but never defined (see the help page).
  2. ^ a b c d e f Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference tycho2 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Hiltner1969 was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference Samus2017 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference Sahade1950 was invoked but never defined (see the help page).
  8. ^ a b c d Cite error: The named reference Tetzlaff2011 was invoked but never defined (see the help page).
  9. ^ a b c Cite error: The named reference Hohle2010 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Barraza was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference Avvakumova2013 was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference GCRV was invoked but never defined (see the help page).