EGGR 508

All names: NLTT 60, UCAC4 367-000081, 2MASS J00033158-1643585, Gaia DR3 2414888694102153088, LP 764-58, 1SWASP J000331.62-164358.4, EC 00009-1700, L 793-18, PHL 639, LTT 11, G 273-208, G266-32, uvby98 980266032, WD 0000-170, Gaia DR2 2414888694102153088, BPS CS 31060-0056, G 266-32, UCAC2 25450739, Gaia EDR3 2414888694102153088, BPS CS 29517-0049, WDJ000331.63-164358.41, GEN# +9.80266032, WD 0000-17, TIC 439397980, EGGR 508

Parameter Unit Gaia EDR3 Pan-STARRS DR1 O'Brien et al. 2024 Gaia DR2 Stilism Bergeron et al. 2011 Zuckerman et al. 2010 Voss et al. 2007 Weidemann and Koester 1995 Wegner et al. 1987 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 00 03 31.90 (0.02) 00 03 31.89 (0.04) 00 03 31.90 00 03 31.63 (0.02) 00 03 31.89 00 03 31.56
Declination -16 43 58.40 (0.02) -16 43 58.40 (0.03) -16 43 58.40 -16 43 58.41 (0.02) -16 43 58.40 -16 44 05.64
Spectral type DBA DBA DB DB DB DB4 DB4
Effective temperature [K] 12759.0 (169) 13880.0 (362) 12900.0 13354.0 11000.0 11000.0 13331.0 (100)
log(g) [cgs] 8.05 (0.02) 8.63 (0.1) 8.00 8.11 (0.008)
Mass [M] 0.613 (0.01) 0.99 (0.08) 0.583 0.651 (0.007)
log(Luminosity) [L] -2.67
Cooling age [Gyr] 0.6918 3.1790
log(H/He) -5.64 (0.5) -5.61 <-4.5
log(C/He) <-7.5 <-7.5
log(Ca/He) <-11.3
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 26.26 (0.03) 26.26 (0.03) 26.27 (0.05) 26.26 26.26 (0.03) 26.27 (0.05)
Distance [pc] 38.08 (0.04) 38.08 (0.04) 38.07 (0.08) 27.00 38.08 38.08 (0.04) 38.07 (0.08)
Composition He He
Proper motion (right ascension) [mas/yr] 247.2151853 (0.03) 247.290737 (0.09) 247.215 (0.03) 247.290737
Proper motion (declination) [mas/yr] 1.103525206 (0.02) 1.093583706 (0.05) 1.104 (0.02) 1.093583706
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 14.68 (0.01)
V magnitude 14.69 14.67 14.58 (0.04)
R magnitude 14.90 (0.1)
I magnitude
J magnitude 14.82 (0.04)
H magnitude 14.91 (0.08)
K magnitude 15.10 (0.1)
u magnitude
g magnitude 14.58 (0.02)
r magnitude 14.71 (0.03)
i magnitude
z magnitude
G magnitude 14.61 (0.001) 14.62 14.61 14.61 (0.003) 14.62
BP magnitude 14.57 (0.001) 14.54 14.54
RP magnitude 14.64 (0.001) 14.64 14.64
Pan g magnitude 14.55 (0.003)
Pan r magnitude 14.76 (0.002)
Pan i magnitude 14.98 (0.002)
Pan z magnitude 15.18 (0.003)
Pan y magnitude 15.30 (0.005)
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.