HD 92945
HD 92945 is a K-type main sequence star in the constellation of Hydra.[1] Its apparent visual magnitude varies by 0.02 magnitudes and is approximately 7.72 at maximum brightness.[2] A debris disk has been observed around the star by coronagraphic imaging, using the ACS and NICMOS instruments on the Hubble Space Telescope. It appears to extend 45 to 175 astronomical units from HD 92945 and is inclined at approximately 29 degrees.[6]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10 V* V419 Hya -- Variable of BY Dra type, database entry, SIMBAD. Accessed on line February 2, 2011.
- ↑ 2.0 2.1 V419 Hya, database entry, The combined table of GCVS Vols I-III and NL 67-78 with improved coordinates, General Catalogue of Variable Stars, Sternberg Astronomical Institute, Moscow, Russia. Accessed on line February 2, 2011.
- ↑ From apparent magnitude and parallax.
- ↑ 4.0 4.1 4.2 4.3 HD 92945, database entry, The Geneva-Copenhagen Survey of Solar neighbourhood, J. Holmberg et al., 2007, CDS ID V/117A. Accessed on line February 2, 2011.
- ↑ 5.0 5.1 5.2 Plavchan, Peter et al. (June 2009), "New Debris Disks Around Young, Low-Mass Stars Discovered with the Spitzer Space Telescope", The Astrophysical Journal 698 (2): 1068–1094, arXiv:0904.0819, Bibcode:2009ApJ...698.1068P, doi:10.1088/0004-637X/698/2/1068
- ↑ Observations and Models of the Debris Disk around the K dwarf HD 92945, D. Golimowski et al., Proceedings of the conference In the Spirit of Bernard Lyot: The Direct Detection of Planets and Circumstellar Disks in the 21st Century, Paul Kalas, ed., June 4–8, 2007, University of California, Berkeley, Bibcode: 2007lyot.confE..46G.
← Known celestial objects within 65–70 light-years → |
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| | Celestial objects by systems. Secondary members are listed in small print. |
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- Gliese 292.1 (65.2±1.4 ly)
- Gliese 268.2 (65.2±1.3 ly)
- GJ 1278 (65.3±1.4 ly)
- Gliese 342 (65.4±1.4 ly)
- Gliese 747.3 (65.4±2.0 ly)
- Gliese 456.1 (65.6±1.3 ly)
- star
- HD 110810 (65.6±1.3 ly)
- HD 136923 (65.7±1.2 ly)
- HD 149806 (65.7±1.2 ly)
- star
- GJ 3620 (65.9±1.7 ly)
- Gliese 765.4 (65.9±1.1 ly)
- star
- Gliese 199 (66.1±3.0 ly)
- star
- Gliese 836.8 (66.2±2.0 ly)
- Gliese 221 (66.3+2.3
−2.1 ly)
- 3 planets: b
- c
- d
- Gliese 840 (66.3±1.3 ly)
- GJ 2001 (66.3±1.1 ly)
- Gliese 558 (66.4±1.8 ly)
- Gliese 257.1 (66.6±1.3 ly)
- GJ 1069 (66.6+6.7
−5.6 ly)
- brown dwarf
- HD 114783 (66.6±1.5 ly)
- planet b
- DK Leonis (66.6±2.4 ly)
- HD 30501 (66.7±0.9 ly)
- star
- GJ 9714 (66.7±2.4 ly)
- Gliese 783.2 (66.8±1.3 ly)
- star
- GJ 1172 (66.9±2.3 ly)
- GJ 3358 (66.9±1.4 ly)
- HD 155712 (67.0±1.4 ly)
- Gliese 217 (67.1±1.4 ly)
- HD 332518 (67.3±1.7 ly)
- Gliese 808.2 (67.4±2.6 ly)
- GJ 1108 (67.6+4.7
−4.2 ly)
- star
- Gliese 53.1 (67.7±1.5 ly)
- star
- GJ 1084 (67.7±1.5 ly)
- GJ 1008 (67.7±2.5 ly)
- Gliese 30 (67.7±1.5 ly)
- Gliese 544 (67.8±1.6 ly)
- star
- GJ 1280 (67.9±1.5 ly)
- HD 104067 (67.9±1.5 ly)
- planet b
- Gliese 533 (68.0±2.6 ly)
- star
- Gliese 415 (68.2±2.8 ly)
- Gliese 371 (68.4±2.3 ly)
- HD 220221 (68.4±1.4 ly)
- HD 119802 (68.5±1.7 ly)
- Gliese 491 (68.5±1.3 ly)
- star
- HD 216259 (68.6±1.7 ly)
- Gliese 396 (68.6±0.9 ly)
- Gliese 889 (68.9±2.8 ly)
- star
- GJ 1165 (69.1±2.9 ly)
- Gliese 659 (69.2±2.9 ly)
- star
- Gliese 276 (69.3±1.9 ly)
- GJ 1048 (69.3±1.6 ly)
- Gliese 155.2 (69.5±1.4 ly)
- HD 97658 (69.5±1.5 ly)
- planet b
- HD 92945 (69.8±1.0 ly)
- Gliese 857.1 (69.8±2.6 ly)
- star
- V775 Herculis (69.9±1.6 ly)
- GJ 4268 (70.0±1.0 ly)
- star
- GJ 3071 (70.0±2.5 ly)
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- Gliese 328 (65.3±3.0 ly)
- planet b
- Gliese 330.1 (67.2±1.8 ly)
- CR Draconis (67.4±1.7 ly)
- HIP 105533 (67.6±2.3 ly)
- Gliese 336 (69.0+4.5
−4.0 ly)
- Gliese 122 (69.5±2.1 ly)
- GJ 4254 (69.8+14.1
−10.1 ly)
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- WISE 0413-4750 (~66.2 ly)
- WISE 0123+4142 (~67.2 ly)
- WISE 0625+5646 (~67.2 ly)
- WISE 0821+1443 (~68.2 ly)
- WISE 0448-1935 (~69.8 ly)
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- WISE 0535-7500 (68.5+42.4
−35.9 ly)
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| | Italic are systems without known trigonometric parallax. |
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