WD 1145+080

All names: SDSS J114757.93+074741.4, SDSS J114757.73+074739.6, G 57-20, USNO-B1.0 0977-00263639, WDJ114757.97+074741.71, Gaia EDR3 3911460633824772224, 2MASS J11475796+0747416, Gaia DR2 3911460633824772224, PG 1145+081, GALEX J114757.8+074741, G 11-23, SDSS J114757.92+074741.3, TIC 350475588, LSPM J1147+0747, NLTT 28593, GEN# +9.80011023, WD 1145+080, Gaia DR3 3911460633824772224, J1147+0747

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Caron et al. 2023 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999) Vincent et al. 2023
Right ascension 11 47 57.64 (0.04) 11 47 57.65 (0.07) 11 47 57.64 11 47 57.97 (0.04) 11 47 57.65 11 47 58.30
Declination 07 47 39.04 (0.04) 07 47 39.12 (0.05) 07 47 39.04 07 47 41.71 (0.04) 07 47 39.12 07 47 43.44
Spectral type DQA DQA DC6 DC6 DQ DC6 DC6 DQ
Effective temperature [K] 8782.0 (196) 8728.0 (22) 9732.0 9569.0 8320.0 (57)
log(g) [cgs] 7.93 (0.03) 7.94 (0.005) 8.28 8.20 7.83 (0.01)
Mass [M] 0.538 (0.02) 0.541 (0.005) 0.774 0.705 0.479 (0.009)
log(Luminosity) [L]
Cooling age [Gyr] 0.8600 0.9777 0.9413
log(H/He) -4.0
log(C/He) -4.86 -4.9
log(Ca/He)
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] 23.26 (0.06) 23.31 (0.08) 23.31 (0.08) 23.26 23.26 (0.06) 23.31 (0.08)
Distance [pc] 42.99 (0.1) 42.90 (0.1) 42.90 (0.1) 42.99 42.99 (0.1) 42.90 (0.1)
Composition He He
Proper motion (right ascension) [mas/yr] -309.5151867 (0.05) -309.6104358 (0.1) -309.515 (0.05) -309.6104358
Proper motion (declination) [mas/yr] -166.6445772 (0.05) -166.6516472 (0.09) -166.645 (0.05) -166.6516472
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude 16.10
I magnitude
J magnitude 15.74 (0.01) 15.70 (0.08)
H magnitude 15.74 (0.02) 15.78 (0.1)
K magnitude 15.73 (0.02)
u magnitude 16.08 (0.006) 16.09 (0.006) 16.09 (0.006)
g magnitude 15.85 (0.003) 15.85 (0.003)
r magnitude 15.91 (0.004) 15.91 (0.004)
i magnitude 16.03 (0.004) 16.03 (0.004)
z magnitude 16.18 (0.007) 16.18 (0.007)
G magnitude 15.85 (0.005) 15.87 15.85 15.85 (0.003) 15.87
BP magnitude 15.91 (0.005) 15.90 15.90
RP magnitude 15.72 (0.004) 15.73 15.73
Pan g magnitude 15.88 (0.008) 15.88 (0.008)
Pan r magnitude 15.91 (0.0009) 15.91 (0.0009)
Pan i magnitude 16.05 (0.002) 16.05 (0.002)
Pan z magnitude 16.21 (0.0009) 16.21 (0.0009)
Pan y magnitude 16.32 (0.007) 16.32 (0.007)
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.