J00344+7333
Culpan hotsd
χ²/N = 0.95
Spectrum
shaded: the intervals the fit used · │ a cancelled pixeldrag on either panel to zoom · dbl-click or Esc to reset · arrows to pan
The whole reduced spectrum above, the region marked on it below. Shaded bands are the intervals the fit used; a tick under the axis marks a pixel the rejection mask cancelled.
Line-profile fit — Bamberg
Line-profile fit — uli
Results and provenance
Fit — Bamberg
| Teff [K] | 25839 ± 800 |
| log g | 5.643 ± 0.121 |
| log n(He)/n(H) | -2.310 ± 0.108 |
| reduced χ² | 0.949 over 648 points |
| radial velocity | -189.0 km s−1 |
| resolution (FWHM) | 2.00 Å |
| lines fitted | 13 |
| grids | HE-0.041.fits HE-0.125.fits HE-0.300.fits HE-0.550.fits +9 more |
| fitted | 04/09/2026 19:07:10 |
Fit — uli
| Teff [K] | 25779 ± 1103 |
| log g | 5.524 ± 0.136 |
| log n(He)/n(H) | -2.304 ± 0.103 |
| reduced χ² | 0.948 over 648 points |
| radial velocity | -189.0 km s−1 |
| resolution (FWHM) | 2.00 Å |
| lines fitted | 13 |
| grids | h909.grid h97.grid h99.grid h999.grid |
| fitted | 04/09/2026 18:34:25 |
Observation
| cosmic rays | 7 pixels cancelled |
| source file | spec-102068-60305-63050394813377783.fits |
Gaia astrometry
| Gaia DR3 source | 537040928284437632 |
| parallax [mas] | 1.2933 ± 0.0189 |
| G | 14.594 |
| BP − RP | 0.088 |
| Gabs | 5.153 |
| μα [mas/yr] | 5.828 |
| μδ [mas/yr] | -1.958 |
| RUWE | 1.071 |
| l, b | 121.712, 10.727 |
| selection | f_plx |
Fitted lines
| line | λ [Å] | shift [Å] | continuum at | ±avg | fitted over |
| Hβ | 4861.32 | -3.06 | -40.0, 40.0 | 5.0 | -45.0, 45.0 |
| Hγ | 4340.46 | -2.74 | -40.0, 36.8 | 4.5 | -43.0, 43.0 |
| Hδ | 4101.73 | -2.59 | -40.0, 31.6 | 4.2 | -43.0, 43.0 |
| Hε | 3970.07 | -2.50 | -28.0, 30.0 | 4.1 | -30.0, 35.0 |
| Hζ | 3889.05 | -2.45 | -20.0, 26.2 | 4.0 | -31.8, 32.0 |
| Hη | 3835.38 | -2.42 | -20.0, 14.6 | 4.0 | -20.7, 21.8 |
| Hθ | 3797.90 | -2.39 | -16.0, 16.0 | 3.9 | -15.6, 16.7 |
| Hι | 3770.63 | -2.38 | -13.0, 13.0 | 3.9 | -11.7, 11.6 |
| Hκ | 3750.15 | -2.36 | -10.0, 10.0 | 3.9 | -7.4, 8.7 |
| He II 4686 | 4685.70 | -2.95 | -11.9, 11.9 | 4.9 | -15.0, 13.8 |
| He I 4472 | 4471.60 | -2.82 | -15.0, 15.0 | 4.6 | -15.0, 15.0 |
| He I 4026 | 4026.29 | -2.54 | -24.2, 15.0 | 4.2 | -15.0, 15.0 |
| He I 4922 | 4921.93 | -3.10 | -15.0, 15.0 | 5.1 | -15.0, 15.0 |
Spectral energy distribution
Teff 25839 K · log g 5.643 · E(44−55) 0.320 · χ²r 1.74 over 39 bands
distance 773 pc · parallax 1.2900 ± 0.0200 mas (2%) · R 0.2104 +0.0047 −0.0046 R☉ · M 0.708 +0.094 −0.081 M☉ — above the 0.47 canonical mass · L 17.8 +1.0 −0.9 L☉
Photometry against the model, with the residual beneath it in units of the error. The horizontal bar on each point is the passband, not an error; a hollow point was not fitted and the tooltip says why. Drag a box to zoom, double-click or Esc to come back out.