Related systems

New Ongoing Finished Rejected

SPEC catalog

Summary

Basic Data

Name: SDSSJ155657.54+265518.2
Coordinates: 15:56:57.54 (h:m:s) +26:55:18.22 (°:':'')
239.2398 (°) +26.9217 (°)
Classification: He-sdO
Class. type: Spectroscopic
Observing Status: New

Parameters

visibility
Parameter Value.
parallax () 0.38 ± 0.39

Notes

Aliases

Tags

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visibility

Observations

Photometric observations: 13, Reduced spectroscopic observations: 2, Spectroscopic raw files: 0, Light curves: 0

Photometric observations

Stilism Reddening Map (Lallement+2018)

Photometry content_copy

Band Value Error Unit
GAIA3.BP 20.176 0.058 mag
GAIA3.G 20.287 0.005 mag
GAIA3.RP 19.971 0.082 mag
GALEX.FUV 18.630 0.088 mag
GALEX.NUV 19.125 0.044 mag
SDSS.U 19.956 0.034 mag
SDSS.G 20.061 0.016 mag
GAIA2.BP 20.107 0.050 mag
SDSS.R 20.423 0.029 mag
GAIA2.G 20.384 0.008 mag
SDSS.I 20.756 0.063 mag
GAIA2.RP 20.243 0.127 mag
SDSS.Z 21.529 0.367 mag

Spectroscopic observations

Reduced spectra

HJD Date Instrument Resolution Exp time (s) SNR Range (Å)
2454333.676 2007-08-21 SDSS @ SDSS 2.5-M 1900 3301.0 NA 3796 - 9188
2454564.883 2008-04-08 SDSS @ SDSS 2.5-M 1900 9004.0 NA 3807 - 9207
Parameter AVG Gaia DR2 Gaia DR3
System
parallax (mas) 0.38 ± 0.39 0.12 ± 0.61 0.57 ± 0.47
pmdec (mas) -2.06 ± 0.51 -2.7 ± 0.9 -1.72 ± 0.49
pmra (mas) -2.3 ± 1.8 -4.5 ± 3.5 -2.04 ± 0.34
Primary
Secondary
content_copy