All names: Gaia DR2 4551645369227445888, TIC 275428106, UCAC4 548-065988, Gaia EDR3 4551645369227445888, 2MASS J17573894+1924175, EGGR 548, GD 370, Gaia DR3 4551645369227445888, WD 1755+194
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Koester et al. 2014 | Gianninas et al. 2011 | Koester et al. 2009 | Koester et al. 2005 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 17 57 38.91 (0.02) | 17 57 38.91 (0.03) | 17 57 38.91 | 17 57 38.93 (0.02) | 17 57 39.24 | ||||||
| Declination | 19 24 16.08 (0.03) | 19 24 16.13 (0.05) | 19 24 16.08 | 19 24 17.60 (0.03) | 19 24 20.88 | ||||||
| Spectral type | DA | DA | DA | DA2.0 | DA3 | ||||||
| Effective temperature | [K] | 25005.0 (340) | 25470.0 (398) | 24439.0 (41) | 24700.0 | 24083.0 (257) | |||||
| log(g) | [cgs] | 7.89 (0.09) | 7.95 (0.05) | 7.80 (0.006) | 7.80 | 7.91 (0.01) | |||||
| Mass | [M☉] | 0.575 (0.04) | 0.61 (0.03) | 0.584 (0.008) | |||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| log(C/H) | -8.1 (0.2) | ||||||||||
| log(N/H) | |||||||||||
| log(O/H) | |||||||||||
| log(Na/H) | |||||||||||
| log(Mg/H) | |||||||||||
| log(Al/H) | |||||||||||
| log(Si/H) | -7.3 (0.2) | ||||||||||
| 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] | 7.36 (0.04) | 7.23 (0.05) | 7.36 | 7.36 (0.04) | ||||||
| Distance | [pc] | 135.95 (0.7) | 138.32 (1) | 136.00 | 135.95 | 135.95 (0.7) | |||||
| Composition | H | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | -11.03909003 (0.04) | -10.9205548 (0.07) | -11.039 (0.04) | |||||||
| Proper motion (declination) | [mas/yr] | -95.20072966 (0.04) | -95.24976462 (0.1) | -95.201 (0.04) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 15.89 (0.07) | ||||||||||
| V magnitude | 15.91 | 15.99 (0.01) | |||||||||
| R magnitude | 15.73 | ||||||||||
| I magnitude | |||||||||||
| J magnitude | 16.45 (0.1) | ||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | |||||||||||
| g magnitude | |||||||||||
| r magnitude | |||||||||||
| i magnitude | |||||||||||
| z magnitude | |||||||||||
| G magnitude | 15.99 (0.002) | 16.01 | 15.99 | 15.99 (0.003) | |||||||
| BP magnitude | 15.89 (0.002) | 15.86 | |||||||||
| RP magnitude | 16.19 (0.003) | 16.19 | |||||||||
| Pan g magnitude | |||||||||||
| Pan r magnitude | |||||||||||
| Pan i magnitude | |||||||||||
| Pan z magnitude | |||||||||||
| Pan y magnitude | |||||||||||
| E(B-V) | 0.038 | ||||||||||
* 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.