1607 Mavis
Stony asteroid
title: "1607 Mavis" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["background-asteroids", "discoveries-by-ernest-leonard-johnson", "named-minor-planets", "astronomical-objects-discovered-in-1950"] description: "Stony asteroid" topic_path: "general/background-asteroids" source: "https://en.wikipedia.org/wiki/1607_Mavis" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::summary Stony asteroid ::
::data[format=table title="Infobox planet"]
| Field | Value |
|---|---|
| minorplanet | yes |
| name | 1607 Mavis |
| background | #D6D6D6 |
| image | 1607Mavis (Lightcurve Inversion).png |
| caption | |
| discovery_ref | |
| discovered | 3 September 1950 |
| discoverer | E. Johnson |
| discovery_site | Johannesburg Obs. |
| mpc_name | (1607) Mavis |
| alt_names | 1950 RA1934 VQ |
| 1958 OB1958 PD | |
| A903 BH | |
| named_after | Mavis Bruwer |
| (wife of astronomer) | |
| Jacobus Bruwer | |
| mp_category | main-belt(middle) |
| orbit_ref | |
| epoch | 4 September 2017 (JD 2458000.5) |
| uncertainty | 0 |
| observation_arc | 114.29 yr (41,743 days) |
| aphelion | 3.3268 AU |
| perihelion | 1.7728 AU |
| semimajor | 2.5498 AU |
| eccentricity | 0.3047 |
| period | 4.07 yr (1,487 days) |
| mean_anomaly | 158.86° |
| mean_motion | / day |
| inclination | 8.5789° |
| asc_node | 122.53° |
| arg_peri | 235.96° |
| dimensions | km |
| 12.10 km (derived) | |
| km | |
| km | |
| rotation | h |
| h | |
| albedo |
0.3320 (derived) | | spectral_type | S | | abs_magnitude | 11.411.5411.6 | ::
| minorplanet = yes | name = 1607 Mavis | background = #D6D6D6 | image = 1607Mavis (Lightcurve Inversion).png | image_scale = | caption = | discovery_ref = | discovered = 3 September 1950 | discoverer = E. Johnson | discovery_site = Johannesburg Obs. | mpc_name = (1607) Mavis | alt_names = 1950 RA1934 VQ 1958 OB1958 PD A903 BH | named_after = Mavis Bruwer (wife of astronomer) Jacobus Bruwer | mp_category = main-belt(middle) | orbit_ref = | epoch = 4 September 2017 (JD 2458000.5) | uncertainty = 0 | observation_arc = 114.29 yr (41,743 days) | aphelion = 3.3268 AU | perihelion = 1.7728 AU | semimajor = 2.5498 AU | eccentricity = 0.3047 | period = 4.07 yr (1,487 days) | mean_anomaly = 158.86° | mean_motion = / day | inclination = 8.5789° | asc_node = 122.53° | arg_peri = 235.96° | dimensions = km 12.10 km (derived) km km | rotation = h h | albedo =
0.3320 (derived) | spectral_type = S | abs_magnitude = 11.411.5411.6
1607 Mavis, provisional designation , is a stony asteroid from the central region of the asteroid belt, approximately 12 kilometers in diameter. It was discovered on 3 September 1950, by South African astronomer Ernest Johnson at Johannesburg Observatory in South Africa. It was later named Mavis Beacon.
Orbit and classification
This asteroid orbits the Sun in the middle main-belt at a distance of 1.8–3.3 AU once every 4 years and 1 month (1,487 days). Its orbit has an eccentricity of 0.30 and an inclination of 9° with respect to the ecliptic. The asteroid's observation arc begins with its official discovery observations, as the two previous identifications, and , made at Heidelberg and Simeiz in 1903 and 1934, respectively, remained unused.
Physical characteristics
Mavis is a stony S-type asteroid.
Rotation period
In September 2007, Australian astronomers Collin Bembrick and Julian Oey independently obtained two rotational lightcurves of Mavis. These well-defined lightcurves gave a rotation period of 6.1339 and 6.1508 hours with a brightness variation of 0.50 and 0.53 magnitude, respectively ().
Diameter and albedo
According to the surveys carried out by the Japanese Akari satellite and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Mavis measures between 11.57 and 14.91 kilometers in diameter and its surface has an albedo between 0.189 and 0.31. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.3320 and a diameter of 12.10 kilometers based on an absolute magnitude of 11.4.
Naming
This minor planet was named in honor of the Mavis Bruwer, wife of astronomer Jacobus Albertus Bruwer, who was an astronomer at Johannesburg Observatory, and after whom 1811 Bruwer was named. The official was published by the Minor Planet Center on 20 February 1976 (M.P.C. 3931).
References
|type = 2017-05-06 last obs. |title = JPL Small-Body Database Browser: 1607 Mavis (1950 RA) |url = https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001607 |publisher = Jet Propulsion Laboratory |access-date = 5 June 2017}}
|title = Dictionary of Minor Planet Names – (1607) Mavis |last = Schmadel | first = Lutz D. |publisher = Springer Berlin Heidelberg |page = 127 |date = 2007 |isbn = 978-3-540-00238-3 |doi = 10.1007/978-3-540-29925-7_1608 |chapter = (1607) Mavis }}
|title = 1607 Mavis (1950 RA) |work = Minor Planet Center |url = https://www.minorplanetcenter.net/db_search/show_object?object_id=1607 |access-date = 29 December 2016}}
|title = Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008) |year = 2009 |url = https://archive.org/details/dictionaryminorp2008schm |url-access = limited |chapter = Appendix – Publication Dates of the MPCs |last = Schmadel |first=Lutz D. |publisher = Springer Berlin Heidelberg |page = 221 |isbn = 978-3-642-01964-7 |doi = 10.1007/978-3-642-01965-4|bibcode = 2009dmpn.book.....S
|display-authors = 6 |first1 = Joseph R. |last1 = Masiero |first2 = A. K. |last2 = Mainzer |first3 = T. |last3 = Grav |first4 = J. M. |last4 = Bauer |first5 = R. M. |last5 = Cutri |first6 = J. |last6 = Dailey |first7 = P. R. M. |last7 = Eisenhardt |first8 = R. S. |last8 = McMillan |first9 = T. B. |last9 = Spahr |first10 = M. F. |last10 = Skrutskie |first11 = D. |last11 = Tholen |first12 = R. G. |last12 = Walker |first13 = E. L. |last13 = Wright |first14 = E. |last14 = DeBaun |first15 = D. |last15 = Elsbury |first16 = T. IV |last16 = Gautier |first17 = S. |last17 = Gomillion |first18 = A. |last18 = Wilkins |date = November 2011 |title = Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...68M |journal = The Astrophysical Journal |volume = 741 |issue = 2 |page = 20 |bibcode = 2011ApJ...741...68M |doi = 10.1088/0004-637X/741/2/68 |arxiv = 1109.4096 |s2cid = 118745497 |access-date= 29 December 2016}}
|title = LCDB Data for (1607) Mavis |publisher = Asteroid Lightcurve Database (LCDB) |url = http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=1607%7CMavis |access-date = 29 December 2016}}
|display-authors = 6 |first1 = Fumihiko |last1 = Usui |first2 = Daisuke |last2 = Kuroda |first3 = Thomas G. |last3 = Müller |first4 = Sunao |last4 = Hasegawa |first5 = Masateru |last5 = Ishiguro |first6 = Takafumi |last6 = Ootsubo |first7 = Daisuke |last7 = Ishihara |first8 = Hirokazu |last8 = Kataza |first9 = Satoshi |last9 = Takita |first10 = Shinki |last10 = Oyabu |first11 = Munetaka |last11 = Ueno |first12 = Hideo |last12 = Matsuhara |first13 = Takashi |last13 = Onaka |date = October 2011 |title = Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey |journal = Publications of the Astronomical Society of Japan |volume = 63 |issue = 5 |pages = 1117–1138 |bibcode = 2011PASJ...63.1117U |doi = 10.1093/pasj/63.5.1117
|display-authors = 6 |first1 = A. |last1 = Mainzer |first2 = T. |last2 = Grav |first3 = J. |last3 = Masiero |first4 = E. |last4 = Hand |first5 = J. |last5 = Bauer |first6 = D. |last6 = Tholen |first7 = R. S. |last7 = McMillan |first8 = T. |last8 = Spahr |first9 = R. M. |last9 = Cutri |first10 = E. |last10 = Wright |first11 = J. |last11 = Watkins |first12 = W. |last12 = Mo |first13 = C. |last13 = Maleszewski |date = November 2011 |title = NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results |journal = The Astrophysical Journal |volume = 741 |issue = 2 |page = 25 |bibcode = 2011ApJ...741...90M |doi = 10.1088/0004-637X/741/2/90 |arxiv = 1109.6407|s2cid = 35447010 }}
|display-authors = 6 |first1 = C. R. |last1 = Nugent |first2 = A. |last2 = Mainzer |first3 = J. |last3 = Bauer |first4 = R. M. |last4 = Cutri |first5 = E. A. |last5 = Kramer |first6 = T. |last6 = Grav |first7 = J. |last7 = Masiero |first8 = S. |last8 = Sonnett |first9 = E. L. |last9 = Wright |date = September 2016 |title = NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos |journal = The Astronomical Journal |volume = 152 |issue = 3 |page = 12 |bibcode = 2016AJ....152...63N |doi = 10.3847/0004-6256/152/3/63 |arxiv = 1606.08923 |doi-access = free }}
|first1 = Collin |last1 = Bembrick |first2 = Bill |last2 = Allen |first3 = Greg |last3 = Bolt |date = June 2008 |title = The Rotation Periods of 845 Naema, 1607 Mavis, and (30105) 2000 FO3 |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2008MPBu...35...74B |journal = The Minor Planet Bulletin |volume = 35 |issue = 2 |pages = 74–75 |issn = 1052-8091 |bibcode = 2008MPBu...35...74B |access-date= 29 December 2016}}
|author = Oey, Julian |date = September 2008 |title = Lightcurve Analysis of Asteroids from the Kingsgrove and Leura Observatories in the 2nd Half of 2007 |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2008MPBu...35..132O |journal = The Minor Planet Bulletin |volume = 35 |issue = 3 |pages = 132–135 |issn = 1052-8091 |bibcode = 2008MPBu...35..132O |access-date= 29 December 2016}}
|display-authors = 6 |first1 = Peter |last1 = Veres |first2 = Robert |last2 = Jedicke |first3 = Alan |last3 = Fitzsimmons |first4 = Larry |last4 = Denneau |first5 = Mikael |last5 = Granvik |first6 = Bryce |last6 = Bolin |first7 = Serge |last7 = Chastel |first8 = Richard J. |last8 = Wainscoat |first9 = William S. |last9 = Burgett |first10 = Kenneth C. |last10 = Chambers |first11 = Heather |last11 = Flewelling |first12 = Nick |last12 = Kaiser |first13 = Eugen A. |last13 = Magnier |first14 = Jeff S. |last14 = Morgan |first15 = Paul A. |last15 = Price |first16 = John L. |last16 = Tonry |first17 = Christopher |last17 = Waters |date = November 2015 |title = Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015Icar..261...34V |journal = Icarus |volume = 261 |pages = 34–47 |bibcode = 2015Icar..261...34V |doi = 10.1016/j.icarus.2015.08.007 |arxiv = 1506.00762 |s2cid = 53493339 |access-date= 29 December 2016}}
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