HD 9578 is a star located in the constellation Sculptor at a distance of about 187 light years from us. At least one planet orbits a star.
| HD 9578 | |||
|---|---|---|---|
| Star | |||
| Observational data ( Age J2000.0 ) | |||
| Right ascension | |||
| Declination | |||
| Distance | St. years | ||
| Visible magnitude ( V ) | 8.21 [1] | ||
| Constellation | Sculptor | ||
| Astrometry | |||
| Radial velocity ( R v ) | -3.9 [2] km / s | ||
| Own movement (μ) | RA: -31.86 [2] Dec: -38.30 [2] | ||
| Parallax (π) | 17.47 ± 0.89 [2] mas | ||
| Characteristics | |||
| Spectral class | G1VC [2] | ||
| Color Index ( B - V ) | 0.588 | ||
| physical characteristics | |||
| Weight | 1.12 [1] M ☉ | ||
| Temperature | |||
| Metallicity | 0.11 [1] | ||
| |||
| Database Information | |||
| SIMBAD | data | ||
| Sources: [2] | |||
Content
- 1 Features
- 2 Planetary system
- 3 notes
- 4 See also
- 5 Links
Features
The star in its characteristics resembles our Sun. It belongs to the class of yellow dwarfs and has a mass of approximately 1.12 solar masses . [one]
Planet System
In October 2009, the discovery of the planet HD 9578 b in this system was announced [1] . Its mass is 0.62 masses of Jupiter and it is drawn at a distance of about 1.27 a. e. from the parent star. The planet’s orbit is thus located in the habitable zone , i.e. an area where the conditions for the emergence and existence of life are most favorable. As you know, giant planets , such as HD 9578 b , do not have a solid surface, and it would be difficult for living organisms to survive on them. Therefore, it is important for astronomers to detect the satellite of the planet HD 9578 b , on the solid surface of which the existence of living organisms is possible.
| Planet | Weight ( M J ) | Radius ( R J ) | Circulation period ( days ) | Semimajor axis orbits ( a.u. ) | Eccentricity orbits |
|---|---|---|---|---|---|
| b | ≥0.62 | ? | 4.94 | 1.27 | ? |
Notes
- ↑ 1 2 3 4 5 G. Bryden, CA Beichman, JM Carpenter, GH Rieke, KR Stapelfeldt, MW Werner, AM Tanner1, SM Lawler, MC Wyatt, DE Trilling, KYL Su, M. Blaylock and JA Stansberry. PLANETS AND DEBRIS DISKS: RESULTS FROM A SPITZER / MIPS SEARCH FOR INFRARED EXCESS (inaccessible link) . ApJ 705 1226-1236 doi: 10.1088 / 0004-637X / 705/2/1226 (2009 October 20). Date of treatment December 23, 2009. Archived April 13, 2012.
- ↑ 1 2 3 4 5 6 SIMBAD (English) . - HD 9578 in the SIMBAD database . Date of treatment December 23, 2009.
- ↑ 1 2 3 4 Collaboration G. Gaia DR2 - 2018 .-- Vol. 1345.
- ↑ Aguilera-Gómez C., Ramírez I., Chanamé J. Lithium abundance patterns of late-F stars: an in-depth analysis of the lithium desert // Astron. Astrophys. - EDP Sciences , 2018 .-- Vol. 614. - P. 55–55. - ISSN 0004-6361 ; 0365-0138 ; 1432-0746 ; 1286-4846 - doi: 10.1051 / 0004-6361 / 201732209
See also
- Sculptor constellation stars list
- HD 10002