GJ 1275

All names: WD 2248+293, Gaia DR3 1884744525522874880, TIC 44195838, 2MASS J22512282+2939440, Gaia EDR3 1884744525522874880, SDSS J225123.66+293945.3, LHS 529, PSO J342.8506+29.6627, USNO 199, J2251+2939, Gaia DR2 1884744525522874880, WISEA J225124.05+293945.9, G128-7, GEN# +9.80128007, 22513+2939, NLTT 55053, WD 2248+29, GJ 1275, WDJ225123.02+293944.49, UCAC2 42339229, PM J22513+2939, WD 2248+294, USNO-B1.0 1196-00584540, 2MASSW J2251228+293944, LSPM J2251+2939, PLX 5534.01, WIRED J225123.66+293945.4, G 189-40, UBV M 53769, G 128-7, SDSS J225123.67+293945.4, CNS5 5637, EGGR 283

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 O'Brien et al. 2024 Caron et al. 2023 McCleery et al. 2020 Blouin et al. 2019 MWDD H Gaia DR2 Stilism Holberg et al. 2016 Limoges et al. 2015 Sion et al. 2014 Giammichele et al. 2012 Gianninas et al. 2011 Zuckerman et al. 2003 Bergeron et al. 2001 Bergeron et al. 1997 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 22 51 24.56 (0.1) 22 51 23.67 22 51 24.51 (0.08) 22 51 24.51 (0.08) 22 51 22.80 22 51 24.56 22 51 23.03 (0.1) 22 51 24.51 22 51 19.42 22 51 23.67
Declination 29 39 46.65 (0.1) 29 39 45.39 29 39 46.58 (0.09) 29 39 46.58 (0.09) 29 39 43.20 29 39 46.65 29 39 44.44 (0.1) 29 39 46.58 29 39 37.80 29 39 45.42
Spectral type DA DA DA DA DA DAH: DA DA DA9 DA DA DA DA DA DA8.1 DA DA9 DAH: DA
Effective temperature [K] 5677.0 (10) 5635.0 (25) 5516.0 (12) 5612.6 (11) 5610.0 (25) 5647.0 5592.0 (98) 5640.0 (127) 5580.0 5592.0 (98) 6230.0 (150) 5450.0 5580.0 (110) 5520.0 (100) 5709.0 (13) 6300.0 (2)
log(g) [cgs] 7.67 (0.006) 7.68 (0.02) 7.62 (0.006) 7.71 (0.01) 7.70 (0.02) 7.70 7.55 (0.2) 7.58 (0.2) 7.55 (0.2) 8.85 (0.2) 7.36 7.53 (0.1) 7.49 (0.2) 7.68 (0.007) 9.32 (0.04)
Mass [M] 0.408 (0.004) 0.429 (0.008) 0.386 (0.004) 0.42 (0.008) 0.424 0.36 (0.08) 0.37 (0.07) 0.35 (0.07) 1.12 (0.1) 0.35 (0.06) 0.33 (0.06) 0.415 (0.005)
log(Luminosity) [L] -3.62 -3.62 -3.61 (0.08) -3.61 (0.08)
Cooling age [Gyr] 1.7600 1.7460 (0.04) 1.7330 1.6100 1.5100 1.5000 (0.2) 1.5500 (0.3)
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H) <-12.386
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] 50.05 (0.2) 50.05 (0.2) 51.47 (0.1) 51.47 (0.1) 51.47 (0.1) 51.47 (0.1) 47.80 (4) 47.80 (4) 47.80 (4) 47.80 (4) 47.80 (4) 50.05 50.05 (0.2) 51.47 (0.1) 41.00 (9)
Distance [pc] 19.98 (0.08) 19.98 (0.08) 19.43 (0.05) 19.43 (0.05) 19.43 (0.05) 19.43 (0.05) 20.92 (2) 20.90 (2) 20.92 20.90 (2) 10.00 20.92 (2) 20.92 (2) 19.98 19.98 (0.08) 19.43 (0.05) 24.39 (5)
Composition H H H H H H H H H H H
Proper motion (right ascension) [mas/yr] 1246.045075 (0.2) 1250.14844 (0.2) 1246.045 (0.2) 1250.148
Proper motion (declination) [mas/yr] 138.2143119 (0.2) 135.1970993 (0.2) 138.214 (0.2) 135.197
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.20 16.20 16.20 16.22
V magnitude 15.55 15.54 15.54 15.54
R magnitude 15.14 15.14 15.14 15.10
I magnitude 14.75 14.75 14.75
J magnitude 14.23 (0.03) 14.32 (0.03) 14.24 14.24 14.23 14.32 (0.03)
H magnitude 13.98 (0.03) 13.98 (0.04) 14.01 14.01 13.98 13.98 (0.04)
K magnitude 13.87 (0.03) 13.94 (0.04) 13.94 13.94 13.87 13.94 (0.04)
u magnitude 16.81 (0.007) 16.81 (0.007) 16.81 (0.007) 16.79 (0.01)
g magnitude 15.78 (0.004) 15.75 (0.003) 15.78 (0.004) 15.78 (0.01)
r magnitude 15.32 (0.004) 15.35 (0.005) 15.32 (0.004) 15.31 (0.01)
i magnitude 15.15 (0.004) 15.17 (0.001) 15.15 (0.004) 15.15 (0.01)
z magnitude 15.10 (0.005) 15.13 (0.005) 15.10 (0.005) 15.11 (0.01)
G magnitude 15.34 (0.001) 15.35 15.35 15.34 15.34 (0.003) 15.35
BP magnitude 15.68 (0.001) 15.70 15.70
RP magnitude 14.82 (0.001) 14.83 14.83
Pan g magnitude 15.73 (0.002) 15.75 (0.003) 15.75 (0.003)
Pan r magnitude 15.34 (0.003) 15.35 (0.005) 15.35 (0.005)
Pan i magnitude 15.15 (0.002) 15.17 (0.001) 15.17 (0.001)
Pan z magnitude 15.13 (0.003) 15.13 (0.005) 15.13 (0.005)
Pan y magnitude 15.12 (0.004) 15.12 (0.005) 15.12 (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.