WD 1450+455

All names: J1452+4522, SDSS J145239.01+452238.3, Gaia DR2 1586838374030594048, Gaia EDR3 1586838374030594048, WD 1450+455, SDSS J145239.00+452238.3, EQ J1452+4522, WDJ145239.02+452238.09, Gaia DR3 1586838374030594048

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 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 14 52 38.94 (0.2) 14 52 39.00 14 52 38.94 (0.2) 14 52 38.94 14 52 39.02 (0.2) 14 52 38.94 14 52 38.50
Declination 45 22 39.20 (0.2) 45 22 38.34 45 22 39.17 (0.3) 45 22 39.20 45 22 38.09 (0.2) 45 22 39.17 45 22 34.32
Spectral type DC DC DC DC DA: DC DC DA:
Effective temperature [K] 5204.0 (58) 5521.0 (47) 5837.0 5615.0 5622.0 (146)
log(g) [cgs] 8.04 (0.04) 8.18 (0.03) 8.33 8.20 8.25 (0.06)
Mass [M] 0.596 (0.03) 0.685 (0.03) 0.798 0.697 0.746 (0.06)
log(Luminosity) [L]
Cooling age [Gyr] 5.5300 4.8490 5.0980
log(H/He)
log(C/He)
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] 10.96 (0.2) 10.69 (0.3) 10.69 (0.3) 10.96 10.96 (0.2) 10.69 (0.3)
Distance [pc] 91.21 (2) 93.55 (3) 93.55 (3) 91.21 91.21 (2) 93.55 (3)
Composition He He
Proper motion (right ascension) [mas/yr] -52.71205618 (0.2) -54.11105047 (0.5) -52.712 (0.2) -54.11105047
Proper motion (declination) [mas/yr] 69.96297839 (0.3) 69.8358372 (0.6) 69.963 (0.3) 69.8358372
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude 19.68 (0.03)
R magnitude
I magnitude
J magnitude 18.60 (0.02) 18.60 (0.02)
H magnitude 18.43 (0.02) 18.43 (0.02)
K magnitude 18.37 (0.02) 18.37 (0.02)
u magnitude 21.64 (0.1) 21.57 (0.2) 21.64 (0.1) 21.64 (0.1) 21.55
g magnitude 20.01 (0.02) 20.01 (0.02) 20.01 (0.02) 20.06
r magnitude 19.36 (0.01) 19.36 (0.01) 19.36 (0.01) 19.39
i magnitude 19.27 (0.02) 19.28 (0.02) 19.28 (0.02) 19.31
z magnitude 19.31 (0.06) 19.31 (0.06) 19.31 (0.06) 19.38
G magnitude 19.47 (0.06) 19.52 19.47 19.47 (0.004) 19.52
BP magnitude 19.86 (0.06) 19.76 19.76
RP magnitude 18.97 (0.04) 18.91 18.91
Pan g magnitude 19.88 (0.01) 19.88 (0.01)
Pan r magnitude 19.33 (0.01) 19.33 (0.01)
Pan i magnitude 19.30 (0.007) 19.30 (0.009)
Pan z magnitude 19.34 (0.01) 19.34 (0.01)
Pan y magnitude 19.41 (0.04) 19.41 (0.05)
E(B-V) 0.011

* 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.