HD 121504
HD 121504
Jump to navigation
Jump to search
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
Constellation | Centaurus |
Right ascension | 13h 57m 17.2388s[1] |
Declination | −56° 02′ 24.159″[1] |
Apparent magnitude (V) | 7.52[2] |
| Characteristics | |
Spectral type | G2V[2] |
| B−V color index | 0.593[3] |
| Astrometry | |
| Proper motion (μ) | RA: 2997750603000000000♠−249.397±0.048[1] mas/yr Dec.: 2998153439999999999♠−84.656±0.056[1] mas/yr |
| Parallax (π) | 24.24 ± 0.25[1] mas |
| Distance | 135 ± 1 ly (41.3 ± 0.4 pc) |
| Details[3] | |
| Mass | 1.18 M☉ |
| Luminosity | 1.55 L☉ |
| Surface gravity (log g) | 4.64 cgs |
| Temperature | 6075 K |
Metallicity [Fe/H] | 0.16 dex |
| Rotation | 8.6 days |
| Rotational velocity (v sin i) | 2.6 km/s |
| Age | 1.2 Gyr |
| Other designations | |
CD-55°5427, GC 18842, HIP 68162 LTT 5432, NLTT 35734, SAO 241321[2] | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
HD 121504 is an 8th magnitude star in the constellation of Centaurus. It is a yellow dwarf (spectral type G2V) and remarkably similar to our Sun, only slightly brighter like α Centauri A. However, it is located at a distance for about 135 light years and thus is not visible to the unaided eye; binoculars or small telescope is required to see this star.
Another component, designated as SAO 241323 has been proposed as a component of the system. However, the star is an optical binary component and in reality is a white giant star located thousands of light years away.
In 2000 the Geneva Extrasolar Planet Search Team announced the discovery of an extrasolar planet orbiting the star.[4]
| Companion (in order from star) | Mass | Semimajor axis (AU) | Orbital period (days) | Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
b | >1.22 MJ | 0.33 | 63.33 ± 0.03 | 0.03 ± 0.01 | — | — |
See also[edit]
- List of extrasolar planets
References[edit]
^ abcde Brown, A. G. A; et al. (2016). "Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties". Astronomy and Astrophysics. 595. A2. arXiv:1609.04172. Bibcode:2016A&A...595A...2G. doi:10.1051/0004-6361/201629512..mw-parser-output cite.citation{font-style:inherit}.mw-parser-output q{quotes:"""""""'""'"}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}
Gaia Data Release 1 catalog entry
^ abc "HD 121504". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2018-04-03.
^ abc Mayor, M.; et al. (2004). "The CORALIE survey for southern extra-solar planets XII. Orbital solutions for 16 extra-solar planets discovered with CORALIE". Astronomy and Astrophysics. 415 (1): 391–402. arXiv:astro-ph/0310316. Bibcode:2004A&A...415..391M. doi:10.1051/0004-6361:20034250.
^ "European Southern Observatory: Six Extrasolar Planets Discovered". SpaceRef Interactive Inc. 7 August 2000. Retrieved 15 August 2009.
External links[edit]
Coordinates: 
13h 57m 17.2375s, −56° 02′ 24.153″
 | This main-sequence-star-related article is a stub. You can help Wikipedia by expanding it. |
Categories:
- Double stars
- G-type main-sequence stars
- Henry Draper Catalogue objects
- Hipparcos objects
- Centaurus (constellation)
- Planetary systems
- Durchmusterung objects
- Main-sequence-star stubs
(window.RLQ=window.RLQ||).push(function(){mw.config.set({"wgPageParseReport":{"limitreport":{"cputime":"0.348","walltime":"0.434","ppvisitednodes":{"value":1478,"limit":1000000},"ppgeneratednodes":{"value":0,"limit":1500000},"postexpandincludesize":{"value":68641,"limit":2097152},"templateargumentsize":{"value":2971,"limit":2097152},"expansiondepth":{"value":14,"limit":40},"expensivefunctioncount":{"value":3,"limit":500},"unstrip-depth":{"value":1,"limit":20},"unstrip-size":{"value":14261,"limit":5000000},"entityaccesscount":{"value":3,"limit":400},"timingprofile":["100.00% 338.511 1 -total"," 41.65% 140.991 1 Template:Reflist"," 30.59% 103.550 2 Template:Cite_journal"," 20.18% 68.316 1 Template:Starbox_astrometry"," 11.79% 39.905 2 Template:Val"," 10.11% 34.227 1 Template:Starbox_observe"," 8.58% 29.051 5 Template:Navbox"," 7.22% 24.445 1 Template:Stars_of_Centaurus"," 6.57% 22.249 1 Template:DEC"," 5.92% 20.056 1 Template:Str_rep"]},"scribunto":{"limitreport-timeusage":{"value":"0.142","limit":"10.000"},"limitreport-memusage":{"value":5387479,"limit":52428800}},"cachereport":{"origin":"mw1266","timestamp":"20181026175814","ttl":1900800,"transientcontent":false}}});mw.config.set({"wgBackendResponseTime":88,"wgHostname":"mw1322"});});
Clash Royale CLAN TAG
