Pictor
Constellation | |
59th) | |
Main stars | 3 |
---|---|
Bayer/Flamsteed stars | 15 |
Stars with planets | 6 |
Stars brighter than 3.00m | 0 |
Stars within 10.00 pc (32.62 ly) | 1 |
Brightest star | α Pic (3.30m) |
Messier objects | 0 |
Meteor showers | 0 |
Bordering constellations | Caelum Carina Columba Dorado Puppis Volans |
Visible at latitudes between +26° and −90°. Best visible at 21:00 (9 p.m.) during the month of January. |
Pictor is a
Pictor has attracted attention because of its second-brightest star
History
The French astronomer Abbé
Characteristics
Pictor is a small constellation bordered by Columba to the north, Puppis and Carina to the east, Caelum to the northwest, Dorado to the southwest and Volans to the south. The three-letter abbreviation for the constellation, as adopted by the International Astronomical Union in 1922, is "Pic".[10] The official constellation boundaries, as set by Belgian astronomer Eugène Delporte in 1930, are defined by a polygon of 18 segments (illustrated in infobox). In the equatorial coordinate system, the right ascension coordinates of these borders lie between 04h 32.5m and 06h 52.0m , while the declination coordinates are between −42.79° and −64.15°.[11] Pictor culminates each year at 9 p.m. on 17 March.[12] Its position in the far Southern Celestial Hemisphere means that the whole constellation is visible to observers south of latitude 26°N,[13][d] and parts become circumpolar south of latitude 35°S.[14]
Features
Stars
Pictor is a faint constellation; its three brightest stars can be seen near the prominent
Located about 1298 light-years from Earth,
Aside from Beta, five other stars in Pictor are known to host planetary systems.
Located 1.5 degrees west southwest of Alpha,
Deep-sky objects
GRB 060729 was a gamma-ray burst that was first observed on 29 July 2006. It is likely the signal of a type Ic supernova—the core collapse of a massive star.[53] It was also notable for its extraordinarily long X-ray afterglow, detectable 642 days (nearly two years) after the original event.[54] The event was remote, with a redshift of 0.54.[53]
See also
- Pictor (Chinese astronomy)
Notes
- ^ Deneb, the 19th-brightest star in the night sky, has a magnitude of 1.25.[1][2][3]
- ^ His observatory was in a private house on the shores of Table Bay in Cape Town.[6]
- ^ He erred in naming the wrong star with the Greek letter epsilon, which is now not used.[8]
- ^ While parts of the constellation technically rise above the horizon to observers between 26°N and 47°N, stars within a few degrees of the horizon are to all intents and purposes unobservable.[13]
- ^ Objects of magnitude 6.5 are among the faintest visible to the unaided eye in suburban-rural transition night skies[16]
- absorption lines in the spectrum are broad and nebulous, because of the rapid spin of the star.[18]
- ^ Like Bayer, Lacaille would simply give two stars very close to each other the same designation with no modifier. It was left to later astronomers such as Gould to designate Eta1, Eta2 etc.[30]
References
Citations
- S2CID 10340205.
- ^
van de Kamp, P. (1953). "The Twenty Brightest Stars". doi:10.1086/126523.
- doi:10.1086/156252.
- ^ ISSN 0004-6256.
- ^ a b Ridpath, Star Tales Pictor.
- ^ Warner 2002.
- ^ Wagman 2003, pp. 6–7.
- ^ a b c Wagman 2003, p. 246.
- ^ Chartrand 1982, p. 176.
- ^ Russell 1922, p. 469.
- ^ IAU, The Constellations, Pictor.
- ^ The Constellations : Part 2 Culmination Times.
- ^ a b c Ridpath, Constellations: Lacerta–Vulpecula.
- ^ Heifetz & Tirion 2007, p. 106.
- ^ Moore, Stargazing 2000, p. 118.
- ^ The Bortle Dark-Sky Scale.
- ^ SIMBAD Alpha Pictoris.
- ^ a b Royer 2007.
- ^ Gray 2006.
- ^ Hempel 2003.
- ^ SIMBAD Beta Pictoris.
- ^ Zuckerman 2001.
- ^ Smith & Terrile 1984.
- ^ Lagrange 2010; ESO 2010.
- ^ a b Pasinetti-Fracassini et al. 2001.
- ^ SIMBAD Gamma Pictoris.
- ^ SIMBAD HR 2196.
- ^ AAVSO HR 2196.
- ^ Harvard College Observatory 1883.
- ^ Wagman 2003, p. 7.
- ^ SIMBAD HR 1663.
- ^ SIMBAD HR 1649.
- ^ SIMBAD CD-49 1541B.
- ^ "Beta Pictoris – Comparison". ESA/Hubble. Retrieved 26 February 2015.
- ^ SIMBAD Delta Pictoris.
- ^ Malkov & Oblak 2006.
- ^ Cousins 1966.
- ^ Pavlovski et al. 1998.
- ^ AAVSO TV Pictoris.
- ^ Chauvin 2005.
- ^ Tuomi 2013.
- ^ Zucker 2004.
- ^ a b Motz & Nathanson 1988, pp. 374–75.
- ^ Kotoneva et al. 2005.
- ^ Burham 2013, pp. 1460–62.
- ^ Ribeiro 2006.
- ^ Duerbeck 1981.
- ^ Wilkins & Dunn 2006.
- ^ NED Pictor A.
- ^ Perley et al. 1997.
- ^ ChandraPR.
- ^ Ghosts of the Future.
- ^ a b Cano et al. 2011.
- ^ Grupe et al. 2010.
Sources
- Anglada-Escudé, Guillem; Arriagada, Pamela; Tuomi, Mikko; Zechmeister, Mathias (2014). "Two Planets around Kapteyn's Star : a Cold and a Temperate Super-Earth Orbiting the Nearest Halo Red Dwarf". Monthly Notices of the Royal Astronomical Society: Letters. 443: L89–L93. .
- Burnham, Robert (2013) [1977]. Burnham's Celestial Handbook, Volume Three: An Observer's Guide to the Universe Beyond the Solar System. New York, New York: Courier Dover Publications. ISBN 978-0-486-31803-5.
- Cano, Z.; Bersier, D.; Guidorzi, C.; Margutti, R.; et al. (2011). "A Tale of Two GRB-SNe at a Common Redshift of z=0.54". Monthly Notices of the Royal Astronomical Society. 413 (1): 669–85. S2CID 62884905.
- Chartrand, Mark R. III (1982). Skyguide: A Field Guide for Amateur Astronomers. New York, New York: Doubleday. ISBN 0-307-13667-1.
- Chauvin, Gael; Lagrange, Anne-Marie; Zuckerman, Ben; Dumas, C.; et al. (2005). "A companion to AB Pic at the Planet/Brown Dwarf Boundary". Astronomy & Astrophysics. 438 (3): L29–L32. S2CID 119089948.
- Cousins, A.W.J. (1966). "The Eclipsing Variable δ Pictoris". Monthly Notices of the Royal Astronomical Society. 131 (3): 443–45. .
- Gray, R. O.; Corbally, C. J.; Garrison, R. F.; McFadden, M. T.; et al. (July 2006). "Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 parsecs: The Southern Sample I". The Astronomical Journal. 132 (1): 161–70. S2CID 119476992.
- Grupe, Dirk; Burrows, David N.; Wu, Xue-Feng; Wang, Xiang-Yu; et al. (2010). "Late-Time Detections of the X-Ray Afterglow of GRB 060729 with Chandra—The Latest Detections Ever of an X-Ray Afterglow". The Astrophysical Journal. 711 (2): 1008–1016. S2CID 1773624.
- S2CID 121397724.
- Heifetz, Milton; ISBN 978-1-139-46138-2.
- Hempel, M.; Schmitt, J.H.M.M. (2003). "High Resolution Spectroscopy of Circumstellar Material around A Stars". Astronomy and Astrophysics. 408 (3): 971–79. .
- Kotoneva, E.; Innanen, K.; Dawson, P.C.; Wood, P.R.; et al. (2005). "A Study of Kapteyn's Star". Astronomy & Astrophysics. 438 (3): 957–62. .
- Lagrange, A.-M.; Bonnefoy, M.; Chauvin, G.; Apai, D.; et al. (2010). "A Giant Planet Imaged in the Disk of the Young Star β Pictoris". Science. 329 (5987): 57–60. S2CID 5427102.
- Malkov, O.Yu.; Oblak, E.; Snegireva, E.A.; Torra, J. (February 2006). "A Catalogue of Eclipsing Variables". Astronomy & Astrophysics. 446 (2): 785–89. hdl:10995/73280.
- ISBN 978-0-521-79445-9.
- Motz, Lloyd; Nathanson, Carol (1988). The Constellations. New York, New York: Doubleday. ISBN 978-0-385-17600-2.
- Harvard College Observatory (April 1883). "Notes". The Observatory. 6: 127–31. Bibcode:1883Obs.....6..127.
- Pasinetti-Fracassini, L.E.; Pastori, L.; Covino, S.; Pozzi, A. (2001). "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) – Third edition – Comments and statistics". Astronomy and Astrophysics. 367 (2): 521–24. S2CID 425754.
- Pavlovski, K.; Cuypers, J.; David, M.; Griffin, R.E.M.; et al. (1998). "The Nearby Ellipsoidal Variable TV Pictoris". Astronomy and Astrophysics. 331: 639–50. Bibcode:1998A&A...331..639P.
- Perley, Richard A.; Röser, Hermann-Josef; Meisenheimer, Klaus (1997). "The Radio Galaxy Pictor A – a Study with the VLA" (PDF). Astronomy & Astrophysics. 328: 12–32. Bibcode:1997A&A...328...12P.
- Ribeiro, Fabíola M.A.; Diaz, Marcos P. (2006). "A Tomographic Study of the Classical Nova RR Pictoris". Publications of the Astronomical Society of the Pacific. 118 (839): 84–93. S2CID 18244357.
- Royer, F.; Zorec, J.; Gómez, A.E. (February 2007). "Rotational Velocities of A-type Stars. III. Velocity Distributions". Astronomy & Astrophysics. 463 (2): 671–82. S2CID 18475298.
- Russell, Henry Norris (October 1922). "The New International Symbols for the Constellations". Bibcode:1922PA.....30..469R.
- Smith, B. A.; Terrile, R. J. (1984). "A Circumstellar Disk around Beta Pictoris". S2CID 120412113.
- Tuomi, Mikko; Anglada-Escudé, Guillem; Gerlach, Enrico; Jones, Hugh R. A.; Reiners, Ansgar; Rivera, Eugenio J.; Vogt, Steven S.; Butler, R. Paul (17 December 2012). "Habitable-zone super-Earth candidate in a six-planet system around the K2.5V star HD 40307". Astronomy & Astrophysics. 549: A48. S2CID 7424216.
- Wagman, Morton (2003). Lost Stars: Lost, Missing and Troublesome Stars from the Catalogues of Johannes Bayer, Nicholas Louis de Lacaille, John Flamsteed, and Sundry Others. Blacksburg, Virginia: The McDonald & Woodward Publishing Company. ISBN 978-0-939923-78-6.
- Warner, Brian (2002). "Lacaille 250 Years on". Astronomy & Geophysics. 43 (2): 25–26. .
- Wilkins, Jamie; Dunn, Robert (2006). 300 Astronomical Objects: A Visual Reference to the Universe. Buffalo, New York: Firefly Books. ISBN 978-1-55407-175-3.
- Zucker, S.; Mazeh, T.; Santos, N.C.; Udry, S.; et al. (2004). "Multi-order TODCOR: Application to Observations Taken with the CORALIE Echelle Spectrograph. II. A Planet in the System HD 41004". Astronomy & Astrophysics. 426 (2): 695–98. S2CID 122118933.
- Zuckerman, Ben; Song, Inseok; Bessell, M.S.; Webb, R.A. (2001). "The β Pictoris Moving Group". S2CID 120493760.
Online sources
- Bortle, John E. (February 2001). "The Bortle Dark-Sky Scale". Sky & Telescope. Sky Publishing Corporation. Retrieved 29 November 2014.
- "Spectacular X-ray Jet Points Toward Cosmic Energy Booster". Exploring the Universe. Chandra X-ray Observatory. 6 June 2000. Retrieved 13 October 2012.
- "Ghosts of the Future: First Giant Structures of the Universe". Exploring the Universe. Harvard-Smithsonian Center for Astrophysics. 13 October 2010. Retrieved 12 October 2012.
- "Pictor, constellation boundary". The Constellations. International Astronomical Union. Retrieved 12 October 2012.
- James, Andrew (7 February 2011). "'The '"Constellations : Part 2 Culmination Times"'". Southern Astronomical Delights. Sydney, New South Wales. Retrieved 12 October 2012.
- Lagrange, Anne-Marie (10 June 2010). "Exoplanet Caught on the Move". European Southern Observatory. Retrieved 25 May 2014.
- "Pictor A". NASA/ipac Extragalactic Database. NASA/jpl/Caltech/ipac. Retrieved 22 August 2014.
- "LTT 2656 – High Proper-motion Star". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 12 October 2012.
- "Beta Pictoris". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 12 October 2012.
- "CD-49 1541B – Star in Double System". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 13 October 2012.
- "Gamma Pictoris". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 12 October 2012.
- "HR 1649 – Star in Double System". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 13 October 2012.
- "HR 1663 – Variable Star". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 13 October 2012.
- "HR 2196 – Variable Star". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 13 October 2012.
- Watson, Christopher (18 January 2010). "NSV 2845". AAVSO Website. American Association of Variable Star Observers. Retrieved 24 May 2014.
- "Delta Pictoris – Eclipsing Binary of Beta Lyr type (Semi-detached)". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 12 October 2012.
- Otero, Sebastian Alberto (21 November 2012). "TV Pictoris". AAVSO Website. American Association of Variable Star Observers. Retrieved 22 May 2014.
- Ridpath, Ian. "Constellations: Lacerta–Vulpecula". Star Tales. self-published. Retrieved 21 June 2014.
- Ridpath, Ian (1988). "Pictor". Star Tales. Retrieved 13 October 2012.
External links
- The clickable Pictor
- Media related to Pictor at Wikimedia Commons