UPSA Object Registry
Registry · deep sky

HD 39091

Star G0 V
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
05h 37m 11.83s
Declination
−80° 27′ 52.6″
Galactic l, b
292.51, -29.78
Distance
18.27 pc

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 10 values

ValueUnitUncertainty Band / methodSourceReferenceYear
1.02 M_sun ± 0.03 NASA Exoplanet Archive Piccinini et al. 2026 2026
1.1 M_sun ± 0.14 NASA Exoplanet Archive Feng et al. 2022 2022
1.07 M_sun ± 0.04 NASA Exoplanet Archive Hatzes et al. 2022 2022
1.07 M_sun ± 0.04 NASA Exoplanet Archive Kunovac Hodžić et al. 2021 2021
1.07 M_sun ± 0.04 NASA Exoplanet Archive Damasso et al. 2020 2020
1.094 M_sun ± 0.039 NASA Exoplanet Archive Xuan & Wyatt 2020 2020
1.094 M_sun ± 0.039 NASA Exoplanet Archive Huang et al. 2018 2018
1.02 M_sun ± 0.03 NASA Exoplanet Archive Gandolfi et al. 2018 2018
1.1 M_sun NASA Exoplanet Archive Butler et al. 2006 2006
1.1 M_sun ± 0.02 NASA Exoplanet Archive Jones et al. 2002 2002

Radius 7 values

ValueUnitUncertainty Band / methodSourceReferenceYear
1.1 R_sun ± 0.01 NASA Exoplanet Archive Piccinini et al. 2026 2026
1.19 R_sun ± 0.004 NASA Exoplanet Archive Hatzes et al. 2022 2022
1.17 R_sun ± 0.02 NASA Exoplanet Archive Kunovac Hodžić et al. 2021 2021
1.17 R_sun ± 0.02 NASA Exoplanet Archive Damasso et al. 2020 2020
1.1 R_sun ± 0.023 NASA Exoplanet Archive Huang et al. 2018 2018
1.1 R_sun ± 0.01 NASA Exoplanet Archive Gandolfi et al. 2018 2018
1.15 R_sun ± 0.05 NASA Exoplanet Archive ExoFOP 2018

Effective temperature 9 values

ValueUnitUncertainty Band / methodSourceReferenceYear
5,870 K ± 50 NASA Exoplanet Archive Piccinini et al. 2026 2026
5,982 K NASA Exoplanet Archive Harada et al. 2025 2025
5,998 K ± 62 NASA Exoplanet Archive Hatzes et al. 2022 2022
5,998 K ± 62 NASA Exoplanet Archive Kunovac Hodžić et al. 2021 2021
5,998 K ± 62 NASA Exoplanet Archive Damasso et al. 2020 2020
6,037 K ± 45 NASA Exoplanet Archive Huang et al. 2018 2018
5,870 K ± 50 NASA Exoplanet Archive Gandolfi et al. 2018 2018
5,950 K NASA Exoplanet Archive ExoFOP 2018
5,950 K ± 44 NASA Exoplanet Archive Butler et al. 2006 2006

Related objects

ObjectTypeRelation
HD 39091 b Exoplanethost
pi Men c Exoplanethost
pi Men d Exoplanethost

In the same field

within 9 arcmin · wider search
ObjectTypeSeparationV
HD 39091 b Exoplanet 0″ 5.65
pi Men c Exoplanet 0″ 5.65
pi Men d Exoplanet 0″ 5.65
* pi. Men c Planet 16.96″ —
HD 39091d Planet Candidate 16.96″ —
* pi. Men HighPM* 16.96″ 5.67
* pi. Men b Planet 16.96″ —
TYC 9386-2231-1 Star 295″ 11.06
UCAC4 048-003568 Star 440.4″ 13.02

Provenance

where this card came from
ArchiveRead at (UTC)Record
Seeded from the bulk archive load; no per-object fetch yet.

Machine-readable: /api/v1/object/hd-39091 · Registry entry updated 2026-08-14.