All names: PM J20491+3728, G 210-36, LTT 16093, L 1576-43, WD 2047+372, CNS5 5142, 1SWASP J204906.71+372813.2, Gaia DR3 1871118140493076224, GAT 1380, 20491+3728, G210-036, UCAC2 44898612, WD 2047+37, Gaia DR2 1871118140493076224, Gaia EDR3 1871118140493076224, LSPM J2049+3728, WDJ204906.70+372814.05, LP 284-13, G210-36, NLTT 49959, GCRV 21707, GJ 4165, EGGR 261, USNO-B1.0 1274-00529653, 2MASS J20490668+3728138, TIC 194154544
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | McCleery et al. 2020 | Gaia DR2 | Bedard et al. 2017 | Subasavage et al. 2017 | Stilism | Holberg et al. 2016 | Limoges et al. 2015 | Sion et al. 2014 | Giammichele et al. 2012 | Gianninas et al. 2011 | Holberg et al. 2008 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 20 49 06.92 (0.01) | 20 49 06.91 (0.03) | 20 49 06.91 (0.03) | 20 49 06.71 | 20 49 06.48 | 20 49 06.92 | 20 49 06.70 (0.01) | 20 49 06.91 | 20 49 05.88 | ||||||||||
Declination | 37 28 16.42 (0.02) | 37 28 16.35 (0.03) | 37 28 16.35 (0.03) | 37 28 01.01 | 37 28 12.00 | 37 28 16.42 | 37 28 14.05 (0.02) | 37 28 16.35 | 37 28 05.16 | ||||||||||
Spectral type | DAP | DAP | DA | DA | DA | DA | DA3.6 | DA | DA | DA | DA | DA3.4 | DA4 | ||||||
Effective temperature | [K] | 14710.0 (200) | 14709.8 (71) | 14628.0 (279) | 14600.0 (590) | 14712.0 (286) | 14600.0 (282) | 14070.0 | 14712.0 (286) | 14710.0 (285) | 14629.0 (72) | ||||||||
log(g) | [cgs] | 8.30 (0.01) | 8.30 (0.006) | 8.33 (0.04) | 8.33 (0.03) | 8.31 (0.04) | 8.32 (0.05) | 8.31 (0.04) | 8.31 (0.04) | 8.30 (0.004) | |||||||||
Mass | [M☉] | 0.796 (0.01) | 0.83 (0.09) | 0.82 (0.02) | 0.81 (0.03) | 0.81 (0.03) | 0.81 (0.03) | 0.81 (0.03) | 0.795 (0.003) | ||||||||||
log(Luminosity) | [L☉] | -2.37 (0.07) | -2.36 | -2.34 | |||||||||||||||
Cooling age | [Gyr] | 0.3600 (0.05) | 0.3700 | 0.3400 | |||||||||||||||
log(H/He) | |||||||||||||||||||
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] | 56.86 (0.02) | 56.86 (0.02) | 56.90 (0.04) | 56.90 (0.04) | 58.49 (0.3) | 57.87 (0.7) | 57.80 (0.7) | 57.87 (0.7) | 56.86 | 56.86 (0.02) | 56.90 (0.04) | 55.00 | ||||||
Distance | [pc] | 17.59 (0.006) | 17.59 (0.006) | 17.57 (0.01) | 17.57 (0.01) | 17.10 (0.1) | 17.10 (0.08) | 17.28 (0.2) | 17.30 (0.2) | 17.28 | 17.30 (0.7) | 17.00 | 17.77 | 17.59 | 17.59 (0.006) | 17.57 (0.01) | 18.18 | ||
Composition | H | H | H | H | H | H | H | ||||||||||||
Proper motion (right ascension) | [mas/yr] | 162.1213259 (0.02) | 162.0114124 (0.06) | 162.121 (0.02) | 162.0114124 | ||||||||||||||
Proper motion (declination) | [mas/yr] | 148.1422634 (0.02) | 148.0516819 (0.06) | 148.142 (0.02) | 148.0516819 | ||||||||||||||
Variability | NOV | ||||||||||||||||||
Magnetic | |||||||||||||||||||
Bd | [MG] | ||||||||||||||||||
Infrared excess (disk) | |||||||||||||||||||
Binarity | |||||||||||||||||||
B magnitude | 13.07 | 13.40 | |||||||||||||||||
V magnitude | 13.00 | 12.97 | 12.93 | ||||||||||||||||
R magnitude | 13.08 | 13.20 | |||||||||||||||||
I magnitude | 13.11 | ||||||||||||||||||
J magnitude | 13.30 (0.02) | 13.30 (0.02) | |||||||||||||||||
H magnitude | 13.37 (0.02) | 13.37 (0.02) | |||||||||||||||||
K magnitude | 13.43 (0.04) | 13.43 (0.04) | |||||||||||||||||
u magnitude | |||||||||||||||||||
g magnitude | |||||||||||||||||||
r magnitude | |||||||||||||||||||
i magnitude | |||||||||||||||||||
z magnitude | |||||||||||||||||||
G magnitude | 13.04 (0.0007) | 13.06 | 13.06 | 13.04 | 13.04 (0.003) | 13.06 | |||||||||||||
BP magnitude | 13.01 (0.0007) | 13.00 | 13.00 | ||||||||||||||||
RP magnitude | 13.13 (0.0006) | 13.13 | 13.13 | ||||||||||||||||
Pan g magnitude | 13.05 (0.0003) | ||||||||||||||||||
Pan r magnitude | 13.20 (0.002) | ||||||||||||||||||
Pan i magnitude | 13.51 (0.04) | ||||||||||||||||||
Pan z magnitude | 13.70 (0.01) | ||||||||||||||||||
Pan y magnitude | 13.83 (0.002) | ||||||||||||||||||
E(B-V) | 0.001 |
* Constant surface field
Spectra without link are available upon request
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.