All names: G 89-10, 07181+1229, Gaia EDR3 3166062806131275136, UCAC4 513-039747, PM J07181+1229, J0718+1229, USNO-B1.0 1024-00159749, WD 0715+12, G89-10, WD 0715+125, GCRV 58577, LTT 17958, WDJ071808.65+122958.80, LSPM J0718+1229, NLTT 17662, EGGR 171, UCAC2 36100161, G 110-49, Gaia DR2 3166062806131275136, TIC 440847438, Gaia DR3 3166062806131275136, CSI+12-07154, 2MASS J07180867+1229596
| Parameter | Unit | Gaia EDR3 | Caron et al. 2023 | Gaia DR2 | Stilism | Limoges et al. 2015 | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 18 08.39 (0.05) | 07 18 08.40 (0.06) | 07 18 08.39 | 07 18 08.67 (90) | 07 18 08.40 | 07 18 09.79 | |||||
| Declination | 12 29 55.83 (0.04) | 12 29 55.92 (0.06) | 12 29 55.83 | 12 29 59.62 (80) | 12 29 55.92 | 12 30 00.72 | |||||
| Spectral type | DA | DA | DA | DA: | DA+DA | DAS | |||||
| Effective temperature | [K] | 7350.0 (63) | 7130.0 (111) | 7200.0 (115) | 7275.0 (84) | ||||||
| log(g) | [cgs] | 7.91 (0.01) | 7.98 (0.1) | 8.12 (0.1) | 7.88 (0.02) | ||||||
| Mass | [M☉] | 0.538 (0.01) | 0.58 (0.06) | 0.66 (0.07) | 0.521 (0.02) | ||||||
| log(Luminosity) | [L☉] | -3.41 | |||||||||
| Cooling age | [Gyr] | 1.2100 | |||||||||
| 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] | 24.02 (0.05) | 23.95 (0.09) | 23.95 (0.09) | 24.02 | 23.95 (0.09) | |||||
| Distance | [pc] | 41.64 (0.09) | 41.75 (0.2) | 41.76 (0.1) | 33.00 (1) | 34.00 | 41.64 | 41.76 (0.1) | |||
| Composition | H | H | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | -237.9834015 (0.05) | -238.0564017 (0.1) | -226.0 | -238.0564017 | ||||||
| Proper motion (declination) | [mas/yr] | -185.3243329 (0.05) | -185.4994263 (0.1) | -200.0 | -185.4994263 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 16.48 (0.08) | ||||||||||
| V magnitude | 16.16 (0.1) | ||||||||||
| R magnitude | 15.60 | ||||||||||
| I magnitude | |||||||||||
| J magnitude | 15.63 (0.01) | 15.44 (0.06) | |||||||||
| H magnitude | 15.22 (0.1) | 15.22 (0.1) | |||||||||
| K magnitude | 15.07 (0.1) | 15.07 (0.1) | |||||||||
| u magnitude | |||||||||||
| g magnitude | 16.27 (0.02) | ||||||||||
| r magnitude | 16.05 (0.05) | ||||||||||
| i magnitude | 15.89 (0.01) | ||||||||||
| z magnitude | |||||||||||
| G magnitude | 16.28 (0.02) | 16.30 | 16.28 | 16.30 | |||||||
| BP magnitude | 16.31 (0.02) | 16.28 | 16.28 | ||||||||
| RP magnitude | 15.83 (0.02) | 15.83 | 15.83 | ||||||||
| Pan g magnitude | 16.35 (0.01) | ||||||||||
| Pan r magnitude | 16.26 (0.002) | ||||||||||
| Pan i magnitude | 16.23 (0.009) | ||||||||||
| Pan z magnitude | 16.41 (0.02) | ||||||||||
| Pan y magnitude | 16.33 (0.01) | ||||||||||
| E(B-V) | 0.000 | ||||||||||
* 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.