All names: 19001+7039, AC +70 8247-0, WDJ190010.25+703951.42, TIC 229797408, CNS5 4728, UBV 16196, WD 1900+70, AC +70 8247, G 260-15, WD 1900+705, LHS 3424, Gaia EDR3 2262849634963004416, PM J19001+7039, WD 1900+706, GJ 742, PLX 4440, NLTT 47348, LAWD 73, LFT 1446, GEN# +9.80260015, uvby98 980260015, LTT 15585, Gaia DR2 2262849634963004416, AP J19001024+7039512, PLX 4440.00, [SPB96] 1935, WISEA J190010.44+703956.7, GW+70 8247, LSPM J1900+7039, Gaia DR3 2262849634963004416, USNO-B1.0 1606-00125381, 2MASS J19001024+7039512, EGGR 129, J1900+7039, CSI+70-19007, USNO 350
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Jewett et al. 2024 | O'Brien et al. 2024 | McCleery et al. 2020 | MWDD H | Gaia DR2 | Stilism | Holberg et al. 2016 | Ferrario et al. 2015 | Limoges et al. 2015 | Sion et al. 2014 | Giammichele et al. 2012 | Holberg et al. 2008 | Bergeron et al. 2001 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 19 00 10.53 (0.01) | 19 00 10.52 (0.03) | 19 00 10.52 (0.03) | 19 00 10.08 | 19 00 10.53 | 19 00 10.25 (0.01) | 19 00 10.52 | 19 00 10.42 | ||||||||||||
Declination | 70 39 59.50 (0.02) | 70 39 59.25 (0.03) | 70 39 59.25 (0.03) | 70 39 50.40 | 70 39 59.50 | 70 39 51.42 (0.02) | 70 39 59.25 | 70 39 33.12 | ||||||||||||
Spectral type | DAP | DAH | DAP | DAP | DAP | DA | DAP | DAP4.2 | DAP | DAP | DC | DB | DAP4.5 | DXP5 | ||||||
Effective temperature | [K] | 11615.0 (100) | 12540.0 (143) | 12144.4 (83) | 11617.0 | 11517.0 (460) | 16000.0 | 11880.0 (744) | 11835.0 | 11835.0 (460) | 12070.0 (990) | 11547.0 (50) | ||||||||
log(g) | [cgs] | 8.60 | 8.67 (0.01) | 8.64 (0.009) | 8.61 | 8.46 (0.05) | 8.54 (0.04) | 8.53 (0.04) | 8.58 (0.03) | 8.53 (0.005) | ||||||||||
Mass | [M☉] | 0.988 (0.006) | 1.029 (0.008) | 0.988 | 0.9 (0.03) | 0.95 (0.02) | 0.93 (0.02) | 0.93 (0.02) | 0.95 (0.02) | 0.927 (0.004) | ||||||||||
log(Luminosity) | [L☉] | -2.88 | -2.88 | -2.88 (0.03) | ||||||||||||||||
Cooling age | [Gyr] | 1.1800 (0.04) | 1.1380 | 0.8600 | 0.9100 | 0.9400 (0.09) | ||||||||||||||
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] | 77.67 (0.02) | 77.67 (0.02) | 77.65 (0.03) | 77.65 (0.03) | 77.00 (2) | 77.00 (2) | 77.00 (2) | 77.00 (2) | 77.00 (2) | 77.67 | 77.67 (0.02) | 77.65 (0.03) | 74.00 | ||||||
Distance | [pc] | 12.88 (0.003) | 12.87 (0.003) | 12.88 (0.005) | 12.88 (0.005) | 12.99 (0.4) | 13.00 (2) | 12.98 | 13.00 (0.4) | 12.99 | 12.99 (0.4) | 12.88 | 12.88 (0.003) | 12.88 (0.005) | 13.51 | |||||
Composition | H | H | H | H | He | He | H? | He | ||||||||||||
Proper motion (right ascension) | [mas/yr] | 85.81000045 (0.02) | 85.77392217 (0.05) | 85.81 (0.02) | 85.77392217 | |||||||||||||||
Proper motion (declination) | [mas/yr] | 505.1496152 (0.02) | 505.0499376 (0.07) | 505.15 (0.02) | 505.0499376 | |||||||||||||||
Variability | ||||||||||||||||||||
Magnetic | yes | yes | yes | yes | yes | |||||||||||||||
Bd | [MG] | 100 | 320 (20) | |||||||||||||||||
Infrared excess (disk) | ||||||||||||||||||||
Binarity | ||||||||||||||||||||
B magnitude | 13.31 | 13.31 | 13.24 | |||||||||||||||||
V magnitude | 13.23 | 13.25 | 13.25 | |||||||||||||||||
R magnitude | 13.24 | 13.24 | 13.50 | |||||||||||||||||
I magnitude | 13.23 | 13.23 | ||||||||||||||||||
J magnitude | 13.33 | 13.33 (0.02) | ||||||||||||||||||
H magnitude | 13.44 | 13.44 (0.03) | ||||||||||||||||||
K magnitude | 13.42 | 13.42 (0.05) | ||||||||||||||||||
u magnitude | ||||||||||||||||||||
g magnitude | ||||||||||||||||||||
r magnitude | ||||||||||||||||||||
i magnitude | ||||||||||||||||||||
z magnitude | ||||||||||||||||||||
G magnitude | 13.25 (0.001) | 13.26 | 13.26 | 13.25 | 13.25 (0.003) | 13.26 | ||||||||||||||
BP magnitude | 13.23 (0.001) | 13.20 | 13.20 | |||||||||||||||||
RP magnitude | 13.25 (0.0008) | 13.25 | 13.25 | |||||||||||||||||
Pan g magnitude | 13.22 (0.006) | |||||||||||||||||||
Pan r magnitude | 13.36 (0.003) | |||||||||||||||||||
Pan i magnitude | 13.64 (0.0003) | |||||||||||||||||||
Pan z magnitude | 13.79 (0.006) | |||||||||||||||||||
Pan y magnitude | 13.86 (0.006) | |||||||||||||||||||
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.