2MASS J09210410+4250446
All names: Gaia EDR3 817506415879164928, GALEX J092104.1+425044, Gaia DR2 817506415879164928, SDSS J092104.12+425044.5, SDSS J092104.10+425044.5, SDSS J092104.12+425044.6, SDSS J092104.11+425044.5, WD 0917+430, Gaia DR3 817506415879164928, WIRED J092104.12+425044.5, 2MASS J09210410+4250446, [HHD2009] SDSS J0921+4250, TIC 56936072
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Tremblay et al. 2011 | Vincent et al. 2024 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 21 04.15 (0.06) | 09 21 04.12 | 09 21 04.14 (0.09) | 09 21 04.12 | 09 21 04.15 | 09 21 04.12 (0.06) | 09 21 04.12 | 09 21 03.84 | 09 21 04.12 | ||||||
| Declination | 42 50 44.23 (0.06) | 42 50 44.61 | 42 50 44.24 (0.09) | 42 50 44.48 | 42 50 44.23 | 42 50 44.68 (0.06) | 42 50 44.57 | 42 50 38.04 | 42 50 44.60 | ||||||
| Spectral type | DA+M | DA+M | DA | DA | DA+dM | DA+M | DA d | DA+M | DA | ||||||
| Effective temperature | [K] | 10856.0 | 12536.0 (1005) | 14390.0 (140) | 10143.0 (82) | 13677.0 (111) | 14118.0 (111) | ||||||||
| log(g) | [cgs] | 7.31 | 7.62 (0.1) | 7.74 (0.03) | 7.12 (0.02) | 7.57 (0.02) | 7.63 (0.02) | ||||||||
| Mass | [M☉] | 0.297 | 0.41 (0.07) | 0.47 (0.01) | 0.245 (0.006) | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||||
| Cooling age | [Gyr] | 0.2470 | 0.1549 | ||||||||||||
| 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] | 6.07 (0.08) | 6.11 (0.1) | 6.07 | 6.07 (0.08) | ||||||||||
| Distance | [pc] | 164.86 (2) | 163.67 (3) | 673.00 (96) | 164.86 | 164.86 (2) | |||||||||
| Composition | H | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | 15.03372372 (0.07) | 15.14679175 (0.2) | 15.034 (0.07) | 15.4 | ||||||||||
| Proper motion (declination) | [mas/yr] | -28.17311081 (0.06) | -28.07873133 (0.2) | -28.173 (0.07) | -25.3 | ||||||||||
| Variability | |||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | WDMS | WDMS | WDMS | ||||||||||||
| B magnitude | |||||||||||||||
| V magnitude | |||||||||||||||
| R magnitude | |||||||||||||||
| I magnitude | |||||||||||||||
| J magnitude | 15.98 (0.09) | ||||||||||||||
| H magnitude | 15.50 (0.1) | ||||||||||||||
| K magnitude | 15.57 (0.07) | ||||||||||||||
| u magnitude | 17.29 (0.009) | 17.31 | 17.29 (0.009) | 17.31 (0.02) | 17.31 | 17.29 (0.02) | |||||||||
| g magnitude | 16.91 (0.005) | 16.94 | 16.91 (0.005) | 16.94 (0.02) | 16.94 | 16.91 (0.02) | |||||||||
| r magnitude | 17.17 (0.006) | 17.18 | 17.17 (0.006) | 17.18 (0.01) | 17.18 | 17.17 (0.01) | |||||||||
| i magnitude | 17.32 (0.007) | 17.30 | 17.32 (0.007) | 17.30 (0.02) | 17.31 | 17.31 (0.02) | |||||||||
| z magnitude | 17.19 (0.01) | 17.20 | 17.19 (0.01) | 17.20 (0.02) | 17.20 | 17.18 (0.02) | |||||||||
| G magnitude | 17.01 (0.005) | 17.03 | 17.01 | 17.01 (0.003) | |||||||||||
| BP magnitude | 17.04 (0.005) | 17.02 | |||||||||||||
| RP magnitude | 16.94 (0.007) | 16.92 | |||||||||||||
| Pan g magnitude | 16.96 (0.007) | ||||||||||||||
| Pan r magnitude | 17.18 (0.005) | ||||||||||||||
| Pan i magnitude | 17.31 (0.004) | ||||||||||||||
| Pan z magnitude | 17.27 (0.004) | ||||||||||||||
| Pan y magnitude | 17.08 (0.01) | ||||||||||||||
| E(B-V) | 0.008 | ||||||||||||||
* Constant surface field
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