All names: Gaia DR2 5219215228420645248, WDJ092907.98-713358.99, TIC 304303114, WD 0928-713, BPM 5639, Gaia DR3 5219215228420645248, WD 0928-71, 2MASS J09290797-7133588, L64-40, L 64-40, LAWD 30, Gaia EDR3 5219215228420645248, NLTT 21957, uvby98 600103496, LTT 3496
| Parameter | Unit | Gaia EDR3 | O'Brien et al. 2024 | Gaia DR2 | Bedard et al. 2017 | Stilism | Gianninas et al. 2011 | Koester et al. 2009 | Subasavage et al. 2009 | Subasavage et al. 2007 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 29 06.99 (0.02) | 09 29 07.02 (0.02) | 09 29 07.97 | 09 29 07.97 | 09 29 06.99 | 09 29 07.98 (0.02) | 09 29 07.02 | 09 29 07.75 | ||||||
| Declination | -71 33 53.49 (0.02) | -71 33 53.66 (0.03) | -71 33 58.80 | -71 33 58.80 | -71 33 53.49 | -71 33 58.99 (0.02) | -71 33 53.66 | -71 33 12.24 | ||||||
| Spectral type | DA | DA | DA | DA5.5 | DA | DA5.9 | DA5 | |||||||
| Effective temperature | [K] | 8440.0 (71) | 8370.0 (120) | 8470.0 (121) | 8389.0 (6) | 8880.0 (260) | 8836.0 (255) | 8349.0 (34) | ||||||
| log(g) | [cgs] | 8.17 (0.02) | 8.16 (0.05) | 8.28 (0.05) | 8.06 (0.009) | 8.25 (0.03) | 8.15 (0.007) | |||||||
| Mass | [M☉] | 0.701 (0.01) | 0.69 (0.08) | 0.78 (0.03) | 0.75 (0.02) | 0.687 (0.006) | ||||||||
| log(Luminosity) | [L☉] | -3.19 (0.02) | ||||||||||||
| Cooling age | [Gyr] | 1.1800 (0.04) | ||||||||||||
| 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] | 39.14 (0.02) | 39.14 (0.02) | 39.14 (0.02) | 38.44 (0.6) | 39.14 | 39.14 (0.02) | 39.14 (0.02) | 38.40 (0.6) | |||||
| Distance | [pc] | 25.55 (0.01) | 25.55 (0.01) | 25.55 (0.02) | 26.00 (0.4) | 27.00 | 26.01 (0.4) | 30.70 | 25.55 | 25.55 (0.01) | 25.55 (0.02) | 26.04 (0.4) | ||
| Composition | H | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -294.7665921 (0.03) | -294.7360974 (0.05) | -294.767 (0.03) | -294.7360974 | |||||||||
| Proper motion (declination) | [mas/yr] | 344.2024757 (0.02) | 344.2066134 (0.05) | 344.202 (0.02) | 344.2066134 | |||||||||
| Variability | NOV | |||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | 15.62 | |||||||||||||
| V magnitude | 15.44 | 15.44 | ||||||||||||
| R magnitude | 14.97 | |||||||||||||
| I magnitude | 14.83 | |||||||||||||
| J magnitude | 14.77 (0.03) | 14.77 (0.03) | 14.77 (0.03) | |||||||||||
| H magnitude | 14.69 (0.06) | 14.69 (0.06) | 14.69 (0.06) | |||||||||||
| K magnitude | 14.68 (0.09) | 14.68 (0.09) | 14.68 (0.09) | |||||||||||
| u magnitude | ||||||||||||||
| g magnitude | ||||||||||||||
| r magnitude | ||||||||||||||
| i magnitude | ||||||||||||||
| z magnitude | ||||||||||||||
| G magnitude | 15.04 (0.002) | 15.05 | 15.04 | 15.04 (0.003) | 15.05 | |||||||||
| BP magnitude | 15.14 (0.002) | 15.14 | 15.14 | |||||||||||
| RP magnitude | 14.84 (0.001) | 14.84 | 14.84 | |||||||||||
| Pan g magnitude | ||||||||||||||
| Pan r magnitude | ||||||||||||||
| Pan i magnitude | ||||||||||||||
| Pan z magnitude | ||||||||||||||
| Pan y magnitude | ||||||||||||||
| 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.