EGGR 39

All names: Cl* Melotte 25 LEID 75, WDJ043344.96+124240.36, FB 39, HZ 7, KUV 04310+1236, WD 0431+12, EGGR 39, BPS BS 17574-0024, Gaia DR3 3306722607119077120, Cl* Melotte 25 PELS 75, WD 0431+125, TIC 245858638, CSI+12-04310, GSC 00677-00394, GEN# +5.20251722, UBV M 41449, uvby98 520251722, WD 0431+126, Cl* Melotte 25 REID 330, UBV 4386, Cl* Melotte 25 HAN 573, USNO-B1.0 1027-00057168, Gaia EDR3 3306722607119077120, Cl* Melotte 25 VA 722, Gaia DR2 3306722607119077120, GCRV 55196, VVO 399, UCAC4 514-007931, 2MASS J04334494+1242403, Cl* Melotte 25 HZ 7

Parameter Unit Gaia EDR3 Pan-STARRS DR1 MWDD H Gaia DR2 Stilism Koester et al. 2014 Gianninas et al. 2011 Koester et al. 2009 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 04 33 45.07 (0.03) 04 33 45.07 (0.05) 04 33 45.07 04 33 44.96 (0.03) 04 33 45.07 04 33 47.66
Declination 12 42 40.13 (0.02) 12 42 40.13 (0.03) 12 42 40.13 12 42 40.36 (0.02) 12 42 40.13 12 42 37.80
Spectral type DA DA DA DA2.3 DA2
Effective temperature [K] 20799.0 20844.0 (283) 21890.0 (346) 21374.0 (28) 22194.0 (186)
log(g) [cgs] 8.10 8.05 (0.09) 8.11 (0.05) 7.97 (0.005) 8.17 (0.007)
Mass [M] 0.685 0.653 (0.05) 0.69 (0.03) 0.728 (0.006)
log(Luminosity) [L]
Cooling age [Gyr] 0.0751
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H) <-8.30
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H) -8.1 (0.1)
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] 21.13 (0.03) 21.14 (0.06) 21.13 21.13 (0.03) 21.14 (0.06) 23.00 (5)
Distance [pc] 47.32 (0.08) 47.30 (0.1) 49.00 47.32 47.32 (0.08) 47.30 (0.1) 43.48 (9)
Composition H H
Proper motion (right ascension) [mas/yr] 98.99226815 (0.04) 99.02193703 (0.1) 98.992 (0.04) 99.02193703
Proper motion (declination) [mas/yr] -14.39769733 (0.03) -14.31380496 (0.07) -14.398 (0.03) -14.31380496
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 14.15
V magnitude 14.23 (0.03) 14.18 14.24
R magnitude 14.49 (0.2)
I magnitude
J magnitude 14.77 (0.03)
H magnitude 14.80 (0.06)
K magnitude 14.80 (0.1)
u magnitude
g magnitude 14.06 (0.04)
r magnitude 14.47 (0.04)
i magnitude 14.78 (0.09)
z magnitude
G magnitude 14.24 (0.001) 14.26 14.24 14.24 (0.003) 14.26
BP magnitude 14.15 (0.001) 14.12 14.12
RP magnitude 14.44 (0.0009) 14.44 14.44
Pan g magnitude 14.08 (0.0008)
Pan r magnitude 14.45 (0.002)
Pan i magnitude 14.76 (0.001)
Pan z magnitude 15.03 (0.004)
Pan y magnitude 15.20 (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.