PM J15589+0417

All names: UCAC4 472-053487, SDSS J155857.69+041704.8, [VV2010] J155857.7+041704, TIC 272967708, CNS5 3929, PM J15589+0417, WISE J155857.68+041704.4, Gaia DR3 4425632987265111680, SDSS J155857.69+041704.9, Gaia DR2 4425632987265111680, SDSS J155857.68+041704.8, WD 1556+044, WDJ155857.70+041705.16, SDSS J155857.69+041704.89, Gaia EDR3 4425632987265111680, WISEA J155857.67+041704.3, GALEX J155857.7+041705, PSO J239.7402+04.2844, J1558+0417, 15589+0417, 2MASS J15585769+0417051

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 SDSS DR10 Kilic et al. 2025 O'Brien et al. 2024 Caron et al. 2023 McCleery et al. 2020 Blouin et al. 2019 MWDD H MWDD HE Gaia DR2 Stilism Limoges et al. 2015 Kepler et al. 2015 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999) Vincent et al. 2023
Right ascension 15 58 57.66 (0.04) 15 58 57.69 15 58 57.69 15 58 57.66 (0.06) 15 58 57.66 (0.06) 15 58 57.66 15 58 57.70 (0.04) 15 58 57.66 15 58 57.41
Declination 04 17 03.99 (0.03) 04 17 04.88 04 17 04.88 04 17 04.02 (0.06) 04 17 04.02 (0.06) 04 17 03.99 04 17 05.15 (0.03) 04 17 04.02 04 17 00.24
Spectral type DAH DCP DC DC DC DC DC DC DAH: DC: DC MWD DC DQ
Effective temperature [K] 6990.0 (20) 6730.0 (51) 6538.0 (15) 6751.3 (36) 6685.0 (120) 7256.0 6981.0 6680.0 (117) 6400.0 (1400) 5936.0 (51)
log(g) [cgs] 8.55 (0.005) 8.42 (0.02) 8.35 (0.005) 8.43 (0.01) 8.43 (0.04) 8.61 8.52 8.00 (0) 8.00 (0) 8.24 (0.009)
Mass [M] 0.948 (0.005) 0.848 (0.01) 0.799 (0.005) 0.854 (0.02) 0.987 0.914 0.57 (0.1) 0.726 (0.008)
log(Luminosity) [L] -3.55
Cooling age [Gyr] 3.7600 3.8830 (0.1) 3.8380 3.7660
log(H/He) -3.2
log(C/He)
log(Ca/He)
log(Ca/H)
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] 44.43 (0.05) 44.43 (0.05) 44.47 (0.09) 44.47 (0.09) 44.47 (0.09) 44.47 (0.09) 44.43 44.43 (0.05) 44.47 (0.09)
Distance [pc] 22.51 (0.02) 22.51 (0.03) 22.49 (0.05) 22.49 (0.04) 22.49 (0.04) 22.49 (0.04) 30.30 (4) 22.51 22.51 (0.02) 22.49 (0.04)
Composition H He He He He
Proper motion (right ascension) [mas/yr] -36.81675395 (0.04) -36.62624375 (0.1) -36.817 (0.04) -36.626
Proper motion (declination) [mas/yr] -72.96422042 (0.04) -73.27901464 (0.1) -72.964 (0.04) -73.279
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.53 (0.04)
V magnitude 16.16 (0.08)
R magnitude
I magnitude
J magnitude 15.48 (0.007) 15.46 (0.05) 15.46 15.46 (0.05)
H magnitude 15.27 (0.1) 15.27 (0.1) 15.27 15.27 (0.1)
K magnitude 14.82 (0.1) 14.82 (0.1) 14.82 14.82 (0.1)
u magnitude 16.86 (0.008) 16.86 (0.008) 16.85 (0.008) 16.86 16.86 (0.01) 16.86 (0.008) 16.86 (0.008)
g magnitude 16.26 (0.004) 16.26 (0.004) 16.26 16.26 (0) 16.22 (0.002) 16.26 (0.004)
r magnitude 15.97 (0.005) 15.97 (0.005) 15.97 15.97 (0) 15.99 (0.006) 15.97 (0.005)
i magnitude 15.97 (0.005) 15.97 (0.005) 15.97 15.97 (0.01) 15.99 (0.002) 15.97 (0.005)
z magnitude 16.09 (0.008) 16.09 (0.008) 16.09 16.09 (0.01) 16.07 (0.005) 16.09 (0.008)
G magnitude 16.00 (0.003) 16.01 16.01 16.00 16.00 (0.003) 16.01
BP magnitude 16.20 (0.003) 16.20 16.20
RP magnitude 15.65 (0.002) 15.66 15.66
Pan g magnitude 16.22 (0.002) 16.22 (0.002) 16.22 (0.002)
Pan r magnitude 15.99 (0.006) 15.99 (0.006) 15.99 (0.006)
Pan i magnitude 15.99 (0.002) 15.99 (0.002) 15.99 (0.002)
Pan z magnitude 16.07 (0.006) 16.07 (0.005) 16.07 (0.005)
Pan y magnitude 16.21 (0.02) 16.21 (0.02) 16.21 (0.01)
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.