1703 Barry

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1703 Barry
001703-asteroid shape model (1703) Barry.png
Shape model of Barry from its lightcurve
Discovery [1]
Discovered by M. Wolf
Discovery site Heidelberg Obs.
Discovery date2 September 1930
Designations
(1703) Barry
Named after
Roger Barry (astronomer) [2]
1930 RB ·1939 FD
1940 TP ·1943 PA
1953 PK ·1963 SB
main-belt  · Flora [3]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 86.57 yr (31,620 days)
Aphelion 2.5955 AU
Perihelion 1.8331 AU
2.2143 AU
Eccentricity 0.1721
3.30 yr (1,204 days)
155.09°
0° 17m 56.76s / day
Inclination 4.5196°
112.28°
213.42°
Physical characteristics
Dimensions9.21±0.49 km [4]
9.41±0.5 km [5]
9.50±0.24 km [6]
9.54 km (derived) [3]
105.7450±1.8907 h [7]
107.04±0.05 h [8]
107.1±0.5 h [9]
0.216±0.012 [6]
0.2187±0.026 [5]
0.2805 (derived) [3]
0.330±0.032 [4]
S [3]
11.845±0.001(R) [7]  ·12.00 [4]  ·12.06±0.30 [10]  ·12.1 [1] [3]  ·12.40 [5] [6]

    1703 Barry (prov. designation: 1930 RB) is a stony Flora asteroid, suspected tumbler and slow rotator from the inner regions of the asteroid belt, approximately 9.5 kilometer in diameter. Discovered in by Max Wolf in 1930, it was later named after Vincentian priest and astronomer Roger Barry.

    Contents

    Discovery

    Barry was discovered on 2 September 1930, by German astronomer Max Wolf at Heidelberg Observatory in southern Germany. [11] In the same month, it was independently discovered by Dutch astronomer Hendrik van Gent and Soviet astronomer Evgenii Skvortsov at their observatories in Johannesburg and Crimea-Nauchnij, respectively. [2]

    Orbit and classification

    The relatively bright S-type asteroid is a member of the Flora family, one of the largest collisional groups in the main-belt. [5] [6] [4] It orbits the Sun in the inner main-belt at a distance of 1.8–2.6  AU once every 3 years and 4 months (1,204 days). Its orbit has an eccentricity of 0.17 and an inclination of 5° with respect to the ecliptic. [1] Its observation arc begins with its official discovery observation at Heidelberg. [11]

    Naming

    This minor planet was named after Vincentian priest Roger Barry (1752–1813), the Court Astronomer of Grand Duchy of Baden at the Mannheim Observatory in 1788. The Heidelberg Observatory is a direct successor to the old Mannheim Observatory. [2] The official naming citation was published by the Minor Planet Center on 20 February 1976 ( M.P.C. 3933). [12]

    Physical characteristics

    Slow rotator

    Photometric observations taken in 2006 and 2011, by Adrián Galád and by the Palomar Transient Factory, showed a leisurely rotation period of 105.745 and 107.1±0.5 hours with a brightness variation of 0.5 and 0.46 magnitude, respectively ( U=3/2 ). [7] [8] [9]

    While most asteroids rotate within 20 hours once around their axis, Barry belongs to the relatively small group of slow rotators with a period above 100 hours. [3]

    It may have a non-principal axis rotation. [9] However, no follow-up measurements have since confirmed its tumbling motion. [3]

    Diameter and albedo

    According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Barry measures between 9.21 and 9.50 kilometers in diameter and its surface has an albedo between 0.216 and 0.330, [4] [5] [6] while the Collaborative Asteroid Lightcurve Link derives an albedo of 0.280 and a diameter of 9.54 kilometers with an absolute magnitude of 12.1. [3]

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    <span class="mw-page-title-main">1150 Achaia</span>

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    1736 Floirac, provisional designation 1967 RA, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 8.7 kilometer in diameter.

    1267 Geertruida, provisional designation 1930 HD, is a carbonaceous background asteroid from the inner regions of the asteroid belt, approximately 20 kilometers in diameter. Discovered by astronomer Hendrik van Gent at Johannesburg Observatory in 1930, the asteroid was later named after Geertruid Pels, sister of Dutch astronomer Gerrit Pels.

    1177 Gonnessia, provisional designation 1930 WA, is a dark background asteroid from the outer regions of the asteroid belt, approximately 99 kilometers in diameter. It was discovered on 24 November 1930, by French astronomer Louis Boyer at the Algiers Observatory in Algeria, North Africa, and named after astronomer François Gonnessiat.

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    2696 Magion, provisional designation 1980 HB, is a dark background asteroid and a slow rotator from the inner regions of the asteroid belt, approximately 21 kilometers in diameter. It was discovered on 16 April 1980, by Slovak astronomer Ladislav Brožek at the Kleť Observatory in former Czechoslovakia. The X-type asteroid has an ambiguous rotation period of 480 hours and is possibly a tumbler. It was named for the first Czechoslovak satellite, Magion 1, launched in 1978.

    <span class="mw-page-title-main">1175 Margo</span>

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    1190 Pelagia, provisional designation 1930 SL, is a dark Nysian asteroid from the inner regions of the asteroid belt, approximately 17 kilometers in diameter. It was discovered on 20 September 1930, by Soviet–Georgian astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula. The asteroid was named after astronomer Pelageya Shajn.

    1644 Rafita, provisional designation 1935 YA, is a stony asteroid from the middle region of the asteroid belt, approximately 15 kilometers in diameter. It is the namesake of the Rafita family, a family of stony asteroids in the intermediate main-belt. However, Rafita is a suspected interloper in its own family. It was discovered on 16 December 1935, by Spanish astronomer Rafael Carrasco Garrorena at the Royal Observatorio Astronómico de Madrid in Spain, and named in memory of the discoverer's son.

    <span class="mw-page-title-main">1276 Ucclia</span>

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    1689 Floris-Jan, provisional designation 1930 SO, is a stony asteroid and a slow rotator from the inner regions of the asteroid belt, approximately 16 kilometers in diameter. Discovered by Hendrik van Gent in 1930, it was named after a contest winner of an exhibition at Leiden Observatory.

    1947 Iso-Heikkilä, provisional designation 1935 EA, is a carbonaceous Eos asteroid from the outer region of the asteroid belt, approximately 30 kilometers in diameter. It was discovered on 4 March 1935, by Finnish astronomer Yrjö Väisälä at Turku Observatory in Southwest Finland. It was named after the location of the discovering observatory, which is also known as the "Iso-Heikkilä Observatory".

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 1703 Barry (1930 RB)" (2017-03-29 last obs.). Jet Propulsion Laboratory . Retrieved 7 June 2017.
    2. 1 2 3 Schmadel, Lutz D. (2007). "(1703) Barry". Dictionary of Minor Planet Names – (1703) Barry. Springer Berlin Heidelberg. p. 135. doi:10.1007/978-3-540-29925-7_1704. ISBN   978-3-540-00238-3.
    3. 1 2 3 4 5 6 7 8 "LCDB Data for (1703) Barry". Asteroid Lightcurve Database (LCDB). Retrieved 18 December 2016.
    4. 1 2 3 4 5 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; et al. (November 2012). "Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids". The Astrophysical Journal Letters. 759 (1): 5. arXiv: 1209.5794 . Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8 . Retrieved 18 December 2016.
    5. 1 2 3 4 5 Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System – IRAS-A-FPA-3-RDR-IMPS-V6.0. Bibcode:2004PDSS...12.....T . Retrieved 17 October 2019.
    6. 1 2 3 4 5 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)
    7. 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 . Retrieved 18 December 2016.
    8. 1 2 Hanus, J.; Broz, M.; Durech, J.; Warner, B. D.; Brinsfield, J.; Durkee, R.; et al. (November 2013). "An anisotropic distribution of spin vectors in asteroid families". Astronomy and Astrophysics. 559: 19. arXiv: 1309.4296 . Bibcode:2013A&A...559A.134H. doi:10.1051/0004-6361/201321993 . Retrieved 18 December 2016.
    9. 1 2 3 Galád, Adrián; Pravec, Petr; Gajdos, Stefan; Kornos, Leonard; Világi, Jozef (October 2007). "Seven Asteroids Studied from Modra Observatory in the Course of Binary Asteroid Photometric Campaign". Earth. 101 (1–2): 17–25. Bibcode:2007EM&P..101...17G. doi:10.1007/s11038-007-9146-6 . Retrieved 18 December 2016.
    10. ↑ Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus. 261: 34–47. arXiv: 1506.00762 . Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007 . Retrieved 18 December 2016.
    11. 1 2 "1703 Barry (1930 RB)". Minor Planet Center. Retrieved 18 December 2016.
    12. ↑ Schmadel, Lutz D. (2009). "Appendix – Publication Dates of the MPCs". Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008) . Springer Berlin Heidelberg. p.  221. doi:10.1007/978-3-642-01965-4. ISBN   978-3-642-01964-7.
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