1250 Galanthus

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1250 Galanthus
Discovery [1]
Discovered by K. Reinmuth
Discovery site Heidelberg Obs.
Discovery date25 January 1933
Designations
(1250) Galanthus
Pronunciation /ɡəˈlænθəs/ [2]
Named after
 Galanthus (snowdrop)
(herbaceous plants) [3]
1933 BD ·1971 OQ
main-belt  ·(middle)
background [4]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 84.84 yr (30,987 days)
Aphelion 3.2465 AU
Perihelion 1.8560 AU
2.5513 AU
Eccentricity 0.2725
4.08 yr (1,488 days)
249.60°
0° 14m 30.84s / day
Inclination 15.169°
292.02°
217.17°
Physical characteristics
Dimensions17.18±5.39 km [5]
19.394±0.152 km [6]
19.54±0.36 km [7]
20.062±0.112 km [8]
20.33±4.93 km [9]
21.00±2.9 km [10]
3.918±0.0009 h [11]
3.92 h [12]
0.04±0.02 [9]
0.0443±0.0069 [6]
0.0500±0.017 [10]
0.055±0.011 [8]
0.058±0.002 [7]
0.06±0.04 [5]
C (assumed) [13]
12.233±0.001(R) [11]  ·12.26 [1] [5] [6] [7] [10] [13]  ·12.52 [9]

    1250 Galanthus, provisional designation 1933 BD, is a dark background asteroid from the central regions of the asteroid belt, approximately 20 kilometers in diameter. It was discovered on 25 January 1933, by German astronomer Karl Reinmuth at the Heidelberg Observatory. [14] The asteroid was named for the herbaceous plant Galanthus , also known as "snowdrop". [3]

    Contents

    Orbit and classification

    Galanthus is a non-family asteroid from the main belt's background population. [4] It orbits the Sun in the central main-belt at a distance of 1.9–3.2  AU once every 4 years and 1 month (1,488 days; semi-major axis of 2.55 AU). Its orbit has an eccentricity of 0.27 and an inclination of 15° with respect to the ecliptic. [1] The body's observation arc begins at Heidelberg the night after its official discovery observation. [14]

    Physical characteristics

    Galanthus is an assumed carbonaceous C-type asteroid. [13]

    Rotation period

    In the early 1980s, a rotational lightcurve of Galanthus was obtained during a survey conducted by Richard P. Binzel at the McDonald Observatory, Texas. Lightcurve analysis gave a well-defined rotation period of 3.92 hours with a brightness variation of 0.28 magnitude ( U=3 ). [12] The period was confirmed from photometric observations by astronomers at the Palomar Transient Factory in October 2015, which gave a similar period of 3.918 hours and an amplitude of 0.22 magnitude ( U=2 ). [11]

    Diameter and albedo

    According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Galanthus measures between 17.18 and 21.00 kilometers in diameter and its surface has an albedo between 0.04 and 0.06. [5] [6] [7] [8] [9] [10]

    The Collaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, that is, an albedo of 0.0500 and a diameter of 21.0 kilometers based on an absolute magnitude of 12.26. [13]

    Naming

    This minor planet was named after the herbaceous plant Galanthus , also known as "snowdrop". [3] The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 ( H 115 ). [3]

    Reinmuth's flowers

    Due to his many discoveries, Karl Reinmuth submitted a large list of 66 newly named asteroids in the early 1930s. The list covered his discoveries with numbers between (1009) and (1200). This list also contained a sequence of 28 asteroids, starting with 1054 Forsytia, that were all named after plants, in particular flowering plants (also see list of minor planets named after animals and plants). [15]

    Related Research Articles

    2069 Hubble, provisional designation 1955 FT, is a carbonaceous asteroid from the outer region of the asteroid belt, approximately 40 kilometers in diameter. It was discovered on 29 March 1955, by the Indiana Asteroid Program at Goethe Link Observatory, United States, and named after American astronomer Edwin Hubble.

    2127 Tanya, provisional designation 1971 KB1, is a carbonaceous asteroid from the outer region of the asteroid belt, approximately 40 kilometers in diameter. It was discovered on 29 May 1971, by Russian astronomer Lyudmila Chernykh at the Crimean Astrophysical Observatory in Nauchnij, on the Crimean peninsula. It was named in memory of Tanya Savicheva, a Russian child diarist during World War II.

    <span class="mw-page-title-main">1054 Forsytia</span> Dark background asteroid

    1054 Forsytia is a dark background asteroid, approximately 46 kilometers in diameter, from the outer regions of the asteroid belt. It was discovered on 20 November 1925, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany and assigned provisional designation 1925 WD. It is named after the flowering plant forsythia, and marks the beginning of a sequence of 28 thematically named asteroids by the discoverer.

    1070 Tunica, provisional designation 1926 RB, is a dark background asteroid from the outer regions of the asteroid belt, approximately 35 kilometers in diameter. It was discovered on 1 September 1926, by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany. The asteroid was named after Petrorhagia, a flowering plant also known as "Tunica".

    1076 Viola, provisional designation 1926 TE, is a Nysian asteroid from the inner regions of the asteroid belt, approximately 22 kilometers in diameter. It was discovered on 5 October 1926, by German astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany. The asteroid was named after the flowering plant Viola.

    <span class="mw-page-title-main">1080 Orchis</span>

    1080 Orchis, provisional designation 1927 QB, is an dark background asteroid from the inner regions of the asteroid belt. It was discovered on 30 August 1927, by German astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany. The carbonaceous F-type asteroid has a rotation period of 16.1 hours and measures approximately 22 kilometers in diameter. It was named after the flowering plant Orchis.

    <span class="mw-page-title-main">1081 Reseda</span> Dark background asteroid

    1081 Reseda is a dark background asteroid from the outer regions of the asteroid belt. It was discovered on 31 August 1927, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany. The asteroid has a rotation period of 7.3 hours and measures approximately 37 kilometers in diameter. It was named after the herbaceous plant Reseda.

    <span class="mw-page-title-main">1082 Pirola</span> Asteroid

    1082 Pirola is a dark Themistian asteroid from the outer regions of the asteroid belt. It was discovered on 28 October 1927, by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in Germany, and assigned the provisional designation 1927 UC. The carbonaceous C-type asteroid has a rotation period of 15.9 hours and measures approximately 41 kilometers in diameter. It was named after the herbaceous plant Pyrola (wintergreen).

    1085 Amaryllis, provisional designation 1927 QH, is a background asteroid from the outer regions of the asteroid belt, approximately 69 kilometers in diameter. It was discovered on 31 August 1927, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany. The asteroid was named after the flowering plant Amaryllis.

    1092 Lilium, provisional designation 1924 PN, is a dark, carbonaceous background asteroid from the outer regions of the asteroid belt, approximately 44 kilometers in diameter. It was discovered on 12 January 1924, by German astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany. The asteroid was named after the flower Lilium.

    1232 Cortusa, provisional designation 1931 TF2, is a background asteroid from the outer regions of the asteroid belt, approximately 40 kilometers (25 miles) in diameter. It was discovered on 10 October 1931, by astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany. The X-type asteroid has a rotation period of 25.2 hours. It was named after the plant Cortusa and indirectly honors astronomer Gustav Stracke.

    2126 Gerasimovich, provisional designation 1970 QZ, is a stony background asteroid from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 30 August 1970, by Soviet astronomer Tamara Smirnova at the Crimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula. The asteroid was named after Russian astronomer Boris Gerasimovich.

    2324 Janice, provisional designation 1978 VS4, is a dark background asteroid from the outer regions of the asteroid belt, approximately 25 kilometers (16 miles) in diameter. It was discovered on 7 November 1978, by American astronomers Eleanor Helin and Schelte Bus at the Palomar Observatory in California. The asteroid was named for Janice Cline at Caltech. The presumably C-type asteroid has a rotation period of 23.2 hours.

    1233 Kobresia, provisional designation 1931 TG2, is a carbonaceous background asteroid from the central regions of the asteroid belt, approximately 33 kilometers in diameter. It was discovered on 10 October 1931, by German astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany. The asteroid was named for the grass-like flowering plant Kobresia, a genus in the sedge family.

    1174 Marmara, provisional designation 1930 UC, is a stony Eoan asteroid from the outer regions of the asteroid belt, approximately 17 kilometers in diameter. It was discovered on 17 October 1930, by German astronomer Karl Reinmuth at Heidelberg Observatory in southwest Germany. The asteroid was later named after the Sea of Marmara, located between Europe and Asia.

    4804 Pasteur, provisional designation 1989 XC1, is a carbonaceous background asteroid from the central regions of the asteroid belt, approximately 20 kilometers in diameter. It was discovered on 2 December 1989, by Belgian astronomer Eric Elst at the ESO's La Silla Observatory in Chile. The asteroid was named after French chemist and microbiologist Louis Pasteur.

    3184 Raab, provisional designation 1949 QC, is a dark background asteroid and a potentially slow rotator from the central regions of the asteroid belt, approximately 17 kilometers in diameter. It was discovered on 22 August 1949, by South African astronomer Ernest Leonard Johnson at the Union Observatory in Johannesburg. The likely C-type asteroid could have a long rotation period of 275 hours. It was named after Austrian amateur astronomer and software engineer Herbert Raab.

    <span class="mw-page-title-main">1424 Sundmania</span> Large asteroid and rather slow rotator

    1424 Sundmania is a large asteroid and rather slow rotator from the background population of the outer regions of the asteroid belt. It was discovered on 9 January 1937, by astronomer Yrjö Väisälä at the Turku Observatory in southwest Finland. The dark X-type asteroid has a notably long rotation period of 93.7 hours and measures approximately 70 kilometers in diameter. It was named after Finnish astronomer and mathematician Karl F. Sundman.

    <span class="mw-page-title-main">2120 Tyumenia</span> Dark background asteroid

    2120 Tyumenia is a dark background asteroid, approximately 45 kilometers in diameter, located in the outer regions of the asteroid belt. It was discovered on 9 September 1967, by Soviet astronomer Tamara Smirnova at the Crimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula. The asteroid was named for the now Russian district of Tyumen Oblast in Western Siberia.

    <span class="mw-page-title-main">1301 Yvonne</span>

    1301 Yvonne is a carbonaceous background asteroid from the background population of the intermediate asteroid belt, approximately 21 kilometers in diameter. It was discovered on 7 March 1934, by French astronomer Louis Boyer at the Algiers Observatory in North Africa. The asteroid was named for the discoverer's sister, Yvonne Boyer

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 1250 Galanthus (1933 BD)" (2017-11-27 last obs.). Jet Propulsion Laboratory. Retrieved 31 December 2017.
    2. ↑ "Galanthus". Merriam-Webster.com Dictionary .
    3. 1 2 3 4 Schmadel, Lutz D. (2003). "(1250) Galanthus". Dictionary of Minor Planet Names – (1250) Galanthus. Springer Berlin Heidelberg. p. 102. doi:10.1007/978-3-540-29925-7_1251. ISBN   978-3-540-00238-3.
    4. 1 2 "Asteroid 1250 Galanthus – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 29 October 2019.
    5. 1 2 3 4 Nugent, C. R.; Mainzer, A.; Masiero, J.; Bauer, J.; Cutri, R. M.; Grav, T.; et al. (December 2015). "NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos". The Astrophysical Journal. 814 (2): 13. arXiv: 1509.02522 . Bibcode:2015ApJ...814..117N. doi:10.1088/0004-637X/814/2/117. S2CID   9341381 . Retrieved 31 December 2017.
    6. 1 2 3 4 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal. 741 (2): 25. arXiv: 1109.6407 . Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. S2CID   35447010.
    7. 1 2 3 4 Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. (online, AcuA catalog p. 153)
    8. 1 2 3 Masiero, Joseph R.; Grav, T.; Mainzer, A. K.; Nugent, C. R.; Bauer, J. M.; Stevenson, R.; et al. (August 2014). "Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos". The Astrophysical Journal. 791 (2): 11. arXiv: 1406.6645 . Bibcode:2014ApJ...791..121M. doi:10.1088/0004-637X/791/2/121. S2CID   119293330.
    9. 1 2 3 4 Nugent, C. R.; Mainzer, A.; Bauer, J.; Cutri, R. M.; Kramer, E. A.; Grav, T.; et al. (September 2016). "NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos". The Astronomical Journal. 152 (3): 12. arXiv: 1606.08923 . Bibcode:2016AJ....152...63N. doi: 10.3847/0004-6256/152/3/63 .
    10. 1 2 3 4 Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System. 12: IRAS-A-FPA-3-RDR-IMPS-V6.0. Bibcode:2004PDSS...12.....T . Retrieved 22 October 2019.
    11. 1 2 3 Waszczak, Adam; Chang, Chan-Kao; Ofek, Eran O.; Laher, Russ; Masci, Frank; Levitan, David; et al. (September 2015). "Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry". The Astronomical Journal. 150 (3): 35. arXiv: 1504.04041 . Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. S2CID   8342929 . Retrieved 31 December 2017.
    12. 1 2 Binzel, R. P.; Mulholland, J. D. (December 1983). "A photoelectric lightcurve survey of small main belt asteroids". Icarus. 56 (3): 519–533. Bibcode:1983Icar...56..519B. doi:10.1016/0019-1035(83)90170-7. ISSN   0019-1035 . Retrieved 31 December 2017.
    13. 1 2 3 4 "LCDB Data for (1250) Galanthus". Asteroid Lightcurve Database (LCDB). Retrieved 31 December 2017.
    14. 1 2 "1250 Galanthus (1933 BD)". Minor Planet Center. Retrieved 31 December 2017.
    15. ↑ Schmadel, Lutz D. (2007). "(1054) Forsytia". Dictionary of Minor Planet Names – (1054) Forsytia. Springer Berlin Heidelberg. p. 90. doi:10.1007/978-3-540-29925-7_1055. ISBN   978-3-540-00238-3.
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