Registry · deep sky

HD 156668

HighPM* SIMBAD PM* K3V 101 papers

harvesting The full record is being pulled from the archives right now — measurement tables, the Gaia row, catalogue photometry. This page will fill itself in.

Right ascension: 17h 17m 40.49s
Declination: +29° 13′ 38.0″
Galactic l, b: 51.968, 32.11
Parallax: 41.11 mas
Redshift z: -0.00014826
Radial velocity: -44.45 km/s
Proper motion: -72.48, 216.8 mas/yr

Also known as

25 identifiers

2MASS J17174049+2913378AG+29 1673AGKR 15417ASCC 695375BD+29 2979CNS5 4245G 181-34Gaia DR2 4575374857376398976Gaia DR3 4575374857376398976HD 156668HIC 84607HIP 84607LSPM J1717+2913LTT 15121NLTT 44537PMC 90-93 4195PPM 105751SAO 84984TIC 257715493TYC 2073-136-1UCAC2 42075721WISEA J171740.44+291340.2YZ 29 8118YZC 24 8118USNO-B1.0 1192-00261608

Published measurements

3 quantities measured more than once

One object can carry a dozen published estimates of the same quantity. The register keeps them side by side rather than picking a winner — the citation is part of the value.

Mass 3 values

Value	Unit	Uncertainty	Source	Reference	Year
0.785167	M_sun	± 0.02388	NASA Exoplanet Archive	Rosenthal et al. 2021	2021
0.79	M_sun	± 0.08807	NASA Exoplanet Archive	TICv8	2014
0.772	M_sun	± 0.02	NASA Exoplanet Archive	Howard et al. 2011	2011

Radius 3 values

Value	Unit	Uncertainty	Source	Reference	Year
0.774528	R_sun	± 0.01215	NASA Exoplanet Archive	Rosenthal et al. 2021	2021
0.760432	R_sun	± 0.03677	NASA Exoplanet Archive	TICv8	2014
0.72	R_sun	± 0.013	NASA Exoplanet Archive	Howard et al. 2011	2011

Effective temperature 3 values

Value	Unit	Uncertainty	Source	Reference	Year
4,903.69	K	± 59.64	NASA Exoplanet Archive	Rosenthal et al. 2021	2021
4,849.92	K	± 116.1	NASA Exoplanet Archive	TICv8	2014
4,850	K	± 88	NASA Exoplanet Archive	Howard et al. 2011	2011

Related objects

Object	Type	Relation
HD 156668 b	Exoplanet	host
HD 156668 c	Exoplanet	host

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
HD 156668 c	Exoplanet	3.544″	8.43
HD 156668 b	Exoplanet	3.544″	8.43
2MASS J17174788+2912287	RGB*	119″	—
NVSS J171745+291651	RadioG	204.7″	—
SDSS J171725.52+291107.9	Seyfert2	246.8″	—
TYC 2073-1870-1	PulsV*	316.4″	10.73
LEDA 4007589	Galaxy	327.6″	—
CRTS J171714.6+291446	EclBin	345.3″	16.29
SDSS J171710.94+291758.1	QSO	466″	—
[VV2006] J171722.9+290619	QSO	495.3″	20.2

Provenance

where this card came from

Archive	Read at (UTC)	Record
Seeded from the bulk archive load; no per-object fetch yet.

Machine-readable: /api/v1/object/hd-156668-2817576 · Registry entry updated 2026-08-14.