All names: GALEX J090402.8+134914, ** FAR 7A, PG 0901+140A, UCAC3 208-105044, Gaia DR3 606938634805314816, 2MASS J09040283+1349149, Gaia EDR3 606938634805314816, WDS J09040+1349A, J0904+1349, UCAC4 520-048987, WDJ09042.84+134915.00, WD 0901+140, SDSS J090402.79+134914.8, TIC 330622655, Gaia DR2 606938634805314816
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Caron et al. 2023 | Kilic et al. 2020 | MWDD H | Gaia DR2 | Stilism | Gianninas et al. 2011 | Liebert et al. 2005 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 04 02.71 (0.04) | 09 04 02.71 | 09 04 02.71 | 09 04 02.84 (0.04) | 09 04 02.30 | |||||||||
| Declination | 13 49 14.65 (0.03) | 13 49 14.66 | 13 49 14.65 | 13 49 15.01 (0.03) | 13 49 09.12 | |||||||||
| Spectral type | DA | DA | DA | DA | DA | DA5.4 | DA5 | |||||||
| Effective temperature | [K] | 9471.0 (41) | 9638.0 (38) | 9471.0 (42) | 9348.0 | 9270.0 (134) | 9220.0 (134) | 9318.0 (52) | ||||||
| log(g) | [cgs] | 7.98 (0.008) | 8.02 (0.008) | 7.99 (0.009) | 7.96 | 8.36 (0.06) | 8.29 (0.05) | 7.96 (0.01) | ||||||
| Mass | [M☉] | 0.589 (0.007) | 0.611 (0.007) | 0.591 (0.007) | 0.578 | 0.82 (0.04) | 0.79 (0.04) | 0.575 (0.008) | ||||||
| log(Luminosity) | [L☉] | -3.14 | ||||||||||||
| Cooling age | [Gyr] | 0.7100 | 0.6846 | 1.2589 | ||||||||||
| 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] | 17.70 (0.04) | 17.75 (0.07) | 17.75 (0.07) | 17.70 | 17.70 (0.04) | ||||||||
| Distance | [pc] | 56.51 (0.1) | 56.34 (0.2) | 56.35 (0.2) | 40.00 | 42.00 | 56.51 | 56.51 (0.1) | ||||||
| Composition | H | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -115.6628516 (0.04) | -115.5791778 (0.1) | -115.663 (0.04) | ||||||||||
| Proper motion (declination) | [mas/yr] | -22.13388528 (0.04) | -22.20580513 (0.08) | -22.134 (0.04) | ||||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | 15.94 (0.09) | |||||||||||||
| V magnitude | 16.04 | 15.62 (0.03) | ||||||||||||
| R magnitude | ||||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | 15.95 (0.01) | 15.82 (0.09) | ||||||||||||
| H magnitude | 15.79 (0.1) | 15.79 (0.1) | ||||||||||||
| K magnitude | 15.72 (0.2) | 15.72 (0.2) | ||||||||||||
| u magnitude | 16.46 (0.007) | 16.50 (0.007) | ||||||||||||
| g magnitude | 16.10 (0.003) | |||||||||||||
| r magnitude | 16.16 (0.004) | |||||||||||||
| i magnitude | 16.25 (0.004) | |||||||||||||
| z magnitude | 16.44 (0.01) | |||||||||||||
| G magnitude | 16.10 (0.003) | 16.12 | 16.10 | 16.10 (0.003) | ||||||||||
| BP magnitude | 16.17 (0.003) | 16.16 | ||||||||||||
| RP magnitude | 15.97 (0.003) | 15.98 | ||||||||||||
| Pan g magnitude | 16.13 (0.002) | 16.13 (0.002) | ||||||||||||
| Pan r magnitude | 16.17 (0.002) | 16.17 (0.003) | ||||||||||||
| Pan i magnitude | 16.30 (0.003) | 16.30 (0.003) | ||||||||||||
| Pan z magnitude | 16.43 (0.006) | 16.43 (0.005) | ||||||||||||
| Pan y magnitude | 16.52 (0.009) | 16.52 (0.008) | ||||||||||||
| E(B-V) | 0.002 | |||||||||||||
* 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.