All names: PM J19493+0747, LSPM J1949+0747, WDJ194923.50+074731.69, 19493+0747, 2MASS J19492350+0747318, Gaia DR2 4298029268399256704, USNO-B1.0 0977-00638254, Gaia EDR3 4298029268399256704, Gaia DR3 4298029268399256704, J1949+0747, TIC 69872638
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | MWDD H | Gaia DR2 | Stilism | Limoges et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 19 49 23.64 (0.02) | 19 49 23.64 (0.03) | 19 49 23.64 (0.03) | 19 49 23.64 | 19 49 23.50 (0.02) | 19 49 23.64 | |||||||
Declination | 07 47 29.71 (0.02) | 07 47 29.78 (0.02) | 07 47 29.78 (0.02) | 07 47 29.71 | 07 47 31.69 (0.02) | 07 47 29.78 | |||||||
Spectral type | DA | DA | DA | DA | DA | DA | DA | ||||||
Effective temperature | [K] | 9245.0 (81) | 9219.0 (32) | 9216.1 (44) | 9090.0 | 9310.0 (134) | 9104.0 (44) | ||||||
log(g) | [cgs] | 8.08 (0.02) | 8.08 (0.005) | 8.08 (0.01) | 8.05 | 8.19 (0.06) | 8.05 (0.008) | ||||||
Mass | [M☉] | 0.645 (0.01) | 0.646 (0.005) | 0.627 | 0.71 (0.04) | 0.629 (0.007) | |||||||
log(Luminosity) | [L☉] | -3.07 | |||||||||||
Cooling age | [Gyr] | 0.8700 | 0.8296 | ||||||||||
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] | 27.37 (0.03) | 27.37 (0.03) | 27.37 (0.04) | 27.37 (0.04) | 27.37 (0.04) | 27.37 | 27.37 (0.03) | 27.37 (0.04) | ||||
Distance | [pc] | 36.53 (0.04) | 36.54 (0.04) | 36.54 (0.05) | 36.53 (0.05) | 36.53 (0.05) | 36.20 (1) | 36.53 | 36.53 (0.04) | 36.53 (0.05) | |||
Composition | H | H | H | H | |||||||||
Proper motion (right ascension) | [mas/yr] | 128.0352708 (0.03) | 127.9762841 (0.06) | 128.035 (0.03) | 127.9762841 | ||||||||
Proper motion (declination) | [mas/yr] | -123.4606783 (0.03) | -123.4659845 (0.05) | -123.461 (0.03) | -123.4659845 | ||||||||
Variability | |||||||||||||
Magnetic | |||||||||||||
Bd | [MG] | ||||||||||||
Infrared excess (disk) | |||||||||||||
Binarity | |||||||||||||
B magnitude | 15.10 | ||||||||||||
V magnitude | |||||||||||||
R magnitude | 15.60 | ||||||||||||
I magnitude | |||||||||||||
J magnitude | 15.16 (0.006) | 15.21 | 15.21 (0.06) | ||||||||||
H magnitude | 15.27 (0.1) | 15.27 | 15.27 (0.1) | ||||||||||
K magnitude | 15.17 (0.2) | 15.17 | 15.17 (0.2) | ||||||||||
u magnitude | |||||||||||||
g magnitude | |||||||||||||
r magnitude | |||||||||||||
i magnitude | |||||||||||||
z magnitude | |||||||||||||
G magnitude | 15.37 (0.002) | 15.39 | 15.39 | 15.37 | 15.37 (0.003) | 15.39 | |||||||
BP magnitude | 15.45 (0.002) | 15.44 | 15.44 | ||||||||||
RP magnitude | 15.22 (0.001) | 15.23 | 15.23 | ||||||||||
Pan g magnitude | 15.43 (0.003) | 15.43 (0.003) | |||||||||||
Pan r magnitude | 15.45 (0.003) | 15.45 (0.003) | |||||||||||
Pan i magnitude | 15.55 (0.003) | 15.55 (0.003) | |||||||||||
Pan z magnitude | 15.68 (0.003) | 15.68 (0.003) | |||||||||||
Pan y magnitude | 15.77 (0.005) | 15.77 (0.005) | |||||||||||
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.