SDSS J090455.45+184741.8
All names: Gaia DR2 636214364550433920, Gaia EDR3 636214364550433920, SDSS J090455.46+184741.9, Gaia DR3 636214364550433920, GALEX J090455.5+184741, SDSS J090455.45+184741.8, [HHD2009] SDSS J0904+1847, WD 0902+189
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 04 55.47 (0.3) | 09 04 55.46 | 09 04 55.47 (0.5) | 09 04 55.45 | 09 04 55.46 (0.3) | 09 04 55.66 | 09 04 55.46 | |||||
| Declination | 18 47 41.78 (0.2) | 18 47 41.87 | 18 47 41.79 (0.4) | 18 47 41.78 | 18 47 41.88 (0.2) | 18 47 36.60 | 18 47 41.86 | |||||
| Spectral type | DA+M | DA+M | DA+M | DA2.9 M | DA+M | DA+MS | ||||||
| Effective temperature | [K] | 8026.0 | 18586.0 (1172) | 9986.0 (93) | ||||||||
| log(g) | [cgs] | 7.64 | 7.80 (0.2) | 8.47 (0.1) | ||||||||
| Mass | [M☉] | 0.406 | 0.515 (0.1) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.6980 | ||||||||||
| 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] | 3.98 (0.4) | 4.63 (0.6) | 3.98 (0.4) | ||||||||
| Distance | [pc] | 251.54 (26) | 215.81 (28) | 471.00 (40) | 251.55 (26) | |||||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 7.68886051 (0.4) | 6.499981829 (0.9) | 7.689 (0.4) | ||||||||
| Proper motion (declination) | [mas/yr] | -6.158889404 (0.3) | -4.841744879 (0.6) | -6.159 (0.3) | ||||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | WDMS | WDMS | WDMS | |||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 19.36 (0.03) | 19.35 | 19.36 (0.03) | 19.34 | 19.36 (0.03) | |||||||
| g magnitude | 19.12 (0.01) | 19.11 | 19.12 (0.01) | 19.10 | 19.13 (0.01) | |||||||
| r magnitude | 19.35 (0.01) | 19.30 | 19.35 (0.01) | 19.29 | 19.32 (0.01) | |||||||
| i magnitude | 19.07 (0.01) | 19.09 | 19.07 (0.01) | 19.07 | 19.10 (0.02) | |||||||
| z magnitude | 18.58 (0.03) | 18.53 | 18.58 (0.03) | 18.51 | 18.55 (0.03) | |||||||
| G magnitude | 19.29 (0.03) | 19.23 | 19.29 (0.009) | |||||||||
| BP magnitude | 19.26 (0.03) | 19.14 | ||||||||||
| RP magnitude | 18.69 (0.03) | 18.52 | ||||||||||
| Pan g magnitude | 19.12 (0.008) | |||||||||||
| Pan r magnitude | 19.33 (0.01) | |||||||||||
| Pan i magnitude | 19.06 (0.01) | |||||||||||
| Pan z magnitude | 18.68 (0.01) | |||||||||||
| Pan y magnitude | 18.37 (0.03) | |||||||||||
| E(B-V) | 0.019 | |||||||||||
* Constant surface field
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