HD 140901B

All names: Gaia DR3 6009537829925128064, CNS5 3887, CSI-37 10500 22, WDS J15475-3755B, LTT 6302, NLTT 41169, DENIS J154730.0-375508, Gaia DR2 6009537829925128064, WD 1544-37, HD 140901B, WD 1544-377, L 481-60, uvby98 986481060, WD1544-377, L 481-060, CD-37 6571B, CCDM J15475-3755B, L481-60, UCAC3 105-194483, LAWD 60, CD-37 10500B, CPD-37 6571B, Gaia EDR3 6009537829925128064, EGGR 114, IDS 15410-3736 B, GEN# +1.00140901B, GCRV 27468, WD 1544-374, WDJ154730.02-375508.46, GJ 599 B, ** SEE 249B, WG 30, UBV 13424, LHS 5299b

Parameter Unit Gaia EDR3 O'Brien et al. 2024 Gaia DR2 Bedard et al. 2017 Tremblay et al. 2017 Stilism Holberg et al. 2016 Sion et al. 2014 Giammichele et al. 2012 Gianninas et al. 2011 Koester et al. 2009 Holberg et al. 2008 Zuckerman et al. 2003 Koester et al. 2001 Bergeron et al. 2001 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 15 47 29.45 (0.02) 15 47 29.47 (0.04) 15 47 30.00 15 47 30.00 15 47 29.45 15 47 30.02 (0.02) 15 47 29.47 15 47 29.04
Declination -37 55 11.81 (0.02) -37 55 11.70 (0.02) -37 55 04.80 -37 55 09.00 -37 55 11.81 -37 55 08.46 (0.02) -37 55 11.70 -37 55 13.80
Spectral type DA DA DA DA DA4.8 DA DA DA DA DA DA DA4.8 DA7
Effective temperature [K] 10392.0 (90) 10402.0 (150) 10380.0 (150) 10348.0 (151) 10610.0 10610.0 (151) 10610.0 (151) 10547.0 (5) 11270.0 10613.0 (18) 10370.0 (43)
log(g) [cgs] 8.03 (0.02) 7.97 (0.05) 7.96 (0.04) 7.70 (0.04) 7.91 (0.04) 8.20 (0.04) 8.09 (0.003) 8.05 8.12 (0.03) 8.02 (0.006)
Mass [M] 0.617 (0.01) 0.62 (0.07) 0.46 (0.02) 0.55 (0.03) 0.72 (0.03) 0.68 0.615 (0.005)
log(Luminosity) [L] -2.67
Cooling age [Gyr] 0.4200 0.4600
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H) <-10.282
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 65.69 (0.03) 65.69 (0.03) 65.63 (0.05) 65.57 (0.5) 65.14 (0.4) 65.60 (0.8) 65.60 (0.6) 74.60 (10) 65.69 65.69 (0.03) 65.63 (0.05) 73.50 (9)
Distance [pc] 15.22 (0.006) 15.22 (0.007) 15.24 (0.01) 15.30 (0.2) 15.25 (0.1) 15.35 (0.09) 15.24 15.20 (0.6) 13.00 14.99 13.40 (2) 15.22 15.22 (0.006) 15.24 (0.01) 13.61 (2)
Composition H H H H
Proper motion (right ascension) [mas/yr] -423.6923067 (0.03) -423.5490346 (0.1) -423.692 (0.03) -423.5490346
Proper motion (declination) [mas/yr] -209.1076326 (0.03) -209.2077848 (0.06) -209.108 (0.03) -209.2077848
Variability NOV
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS WDMS DDU
B magnitude 13.15 13.10
V magnitude 12.80 (0.05) 12.78 12.78 12.72 12.72 12.97 12.80
R magnitude 12.75 13.53 (0.04)
I magnitude 12.37 12.34 (0.02)
J magnitude
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 13.00 (0.0009) 13.02 13.00 (0.001) 13.00 13.00 (0.003) 13.02
BP magnitude 13.04 (0.0009) 13.03 13.03
RP magnitude 12.93 (0.0009) 12.94 12.94
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.001

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.