J16084+4221sdO

16:08:28.70 42:21:01.66  ·  Culpan hotsd

outside the grid χ²/N = 0.98

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

profile fit on the Bamberg grid
Observed spectrum in black, model in red, offset by line. Balmer series left, helium right.

Results and provenance

Fit — Bamberg

Teff [K]60058 ± 359
log g7.204 ± 0.095
log n(He)/n(H)-1.785 ± 0.102
reduced χ²0.984 over 742 points
radial velocity-84.0 km s−1
resolution (FWHM)2.00 Å
lines fitted15
gridsHE-0.041.fits
HE-0.125.fits
HE-0.300.fits
HE-0.550.fits
+9 more
settledoutside the grid
fitted04/09/2026 19:09:34

Observation

telescopeSDSS 2.5-M
survey / programmeboss
date2012-06-18
exposure3603 s in 8
pipelinev5_13_2
S/N (classifier)43.5
source filespec-6043-56096-0008.fits

Gaia astrometry

Gaia DR3 source1384885751892947712
parallax [mas]0.5882 ± 0.0533
G16.860
BP − RP-0.569
Gabs5.708
μα [mas/yr]-11.379
μδ [mas/yr]-6.218
RUWE1.018
l, b67.067, 47.429
selectionf_plx

Classifier

NEW

auto: He II/He I 8.5, EW 1.27

Fitted lines

lineλ [Å]shift [Å]continuum at±avgfitted over
Hβ4861.32-1.36-40.0, 40.05.0-45.0, 45.0
Hγ4340.46-1.22-40.0, 36.84.5-43.0, 43.0
Hδ4101.73-1.15-40.0, 31.64.2-43.0, 43.0
Hε3970.07-1.11-28.0, 30.04.1-30.0, 35.0
Hζ3889.05-1.09-20.0, 26.24.0-31.8, 32.0
Hη3835.38-1.07-20.0, 14.64.0-20.7, 21.8
Hθ3797.90-1.06-16.0, 16.03.9-15.6, 16.7
Hι3770.63-1.06-13.0, 13.03.9-11.7, 11.6
He II 46864685.70-1.31-11.9, 11.94.9-15.0, 13.8
He II 54125411.52-1.52-15.0, 15.05.6-15.0, 15.0
He II 45424541.59-1.27-15.0, 20.04.7-20.0, 20.0
He II 42004199.84-1.18-23.5, 33.84.3-20.0, 20.0
He I 44724471.60-1.25-15.0, 15.04.6-15.0, 15.0
He I 40264026.29-1.13-24.2, 15.04.2-15.0, 15.0
He I 49224921.93-1.38-15.0, 15.05.1-15.0, 15.0