CPD-69 177

All names: 2MASS J03103100-6836032, UBV M 42292, CPD-69 177, LB 3303, uvby98 620020021, CSI-69 177 41, GJ 127.1, TIC 31674330, ** EGG 6A, CNS5 795, CSV 102408, WDS J03105-6836A, GALEX J031031.2-683602, GEN# -0.06900177, TYC 9145-601-1, WDJ031031.02-683603.38, EC 03100-6847, Gaia EDR3 4646535078125821568, NSV 1075, GJ 127.1A, WISEA J031031.09-683604.4, Gaia DR3 4646535078125821568, UBV 3139, CSI-68-03100, HIP 14754, USNO-B1.0 0213-00022473, GSC 09145-00601, HIC 14754, WD 0310-688, EGGR 21, Gaia DR2 4646535078125821568, uvby98 -006900177 A, WD 0310-68

Parameter Unit Gaia EDR3 O'Brien et al. 2024 Gaia DR2 Bedard et al. 2017 Subasavage 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 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 03 10 31.14 (0.03) 03 10 31.13 (0.04) 03 10 31.01 03 10 30.72 03 10 31.14 03 10 31.02 (0.03) 03 10 31.13 03 10 27.22
Declination -68 36 05.03 (0.03) -68 36 04.98 (0.04) -68 36 00.04 -68 36 00.00 -68 36 05.03 -68 36 03.38 (0.03) -68 36 04.98 -68 36 43.20
Spectral type DA DA DA DA DA DA3.3 DA DA DA DA DA3.0 DA3
Effective temperature [K] 15866.0 (263) 16246.0 (237) 15460.0 (1030) 16860.0 (240) 16865.0 (244) 16865.0 16865.0 (244) 16860.0 (244) 16329.0 (6) 16730.0 (129)
log(g) [cgs] 8.08 (0.02) 8.14 (0.04) 8.06 (0.04) 8.09 (0.04) 8.10 (0.04) 8.10 (0.04) 8.09 (0.04) 7.91 (0.001) 8.13 (0.006)
Mass [M] 0.66 (0.01) 0.72 (0.08) 0.65 (0.04) 0.68 (0.02) 0.67 (0.03) 0.67 (0.03) 0.696 (0.005)
log(Luminosity) [L] -2.10 (0.1) -1.97
Cooling age [Gyr] 0.2000 (0.05) 0.1700 0.1600
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
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] 96.18 (0.03) 96.18 (0.03) 96.17 (0.04) 96.58 (1) 97.66 (2) 98.50 (1) 98.50 (1) 98.50 (1) 96.18 96.18 (0.03) 96.17 (0.04) 84.90 (10)
Distance [pc] 10.40 (0.003) 10.40 (0.003) 10.40 (0.004) 10.40 (0.1) 10.35 (0.1) 10.24 (0.2) 10.15 (0.1) 10.15 10.20 (0.4) 11.00 10.15 10.40 10.40 (0.003) 10.40 (0.004) 11.78 (1)
Composition H H H H H
Proper motion (right ascension) [mas/yr] 39.66823398 (0.04) 39.45147582 (0.1) 39.668 (0.04) 39.45147582
Proper motion (declination) [mas/yr] -103.2374403 (0.03) -103.1940973 (0.08) -103.237 (0.03) -103.1940973
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 11.41
V magnitude 11.38 11.39 (0.01) 11.37 11.40 11.40 11.39
R magnitude 11.47 11.47
I magnitude 11.55 11.56
J magnitude 11.76 (0.02) 11.76 (0.02)
H magnitude 11.79 (0.03) 11.79 (0.03)
K magnitude 11.86 (0.02) 11.86 (0.02)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 11.41 (0.0009) 11.42 11.41 11.41 (0.003) 11.42
BP magnitude 11.36 (0.0009) 11.35 11.35
RP magnitude 11.53 (0.0003) 11.54 11.54
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.000

* 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.