749 Malzovia

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749 Malzovia
Nikolai Maltsov [2]
(Russian amateur astronomer)
A913 GD · 1950 JO
1968 XA · 1913 RF
Perihelion
1.8558 AU
2.2437 AU
Eccentricity0.1729
3.36 yr (1,228 d)
289.14°
0° 17m 35.88s / day
Inclination5.3946°
109.76°
128.97°
Physical characteristics
Mean diameter
Synodic rotation period
5.9274±0.0002 h[10][a]
  • (242.0°, 61.0°) (λ1/β1)[11]
  • (50.0°, 58.0°) (λ2/β2)[11]

749 Malzovia (

Nikolai Maltsov (S. I. Maltsov) who founded the discovering Simeïs Observatory in 1900.[2]

Orbit and classification

Located in the region of the

Heidelberg Observatory on 30 April 1913, or 25 days after its official discovery observation at Simeiz Observatory.[1]

Naming

This

H 75).[2]

Physical characteristics

In the

SMASS classification, Malzovia is a common, stony S-type asteroid.[3]

Rotation period

In February 2020, a rotational

U=3−/3−).[13][14][a]

Poles

Published in 2018, thermophysical modeling of Malzovia from thermal data obtained from the Wide-field Infrared Survey Explorer (WISE) gave a sidereal period of (5.92748±0.00002 h) and two spin axes at (53.0°, 37.0°) and (242.0°, 46.0°) in ecliptic coordinates (λ, β).[11] Previously, two lightcurves published in 2016, using modeled photometric data from the Lowell Photometric Database (LPD) and other sources, gave a period of (5.92749±0.00001) and 5.92748±0.00005 hours, respectively. Each modeled lightcurve also determined two poles at (53.0°, 37.0°) and (242.0°, 46.0°), as well as (55.0°, 46.0°) and (246.0°, 55.0°), respectively.[15][16]

Diameter and albedo

According to the surveys carried out by the Japanese

albedo of (0.270±0.029) and (0.239±0.011), respectively.[7][8][9]

The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 and calculates a diameter of 12.98 kilometers based on an absolute magnitude of 11.6.[12] The WISE team also published several alternative mean-diameters of (11.11±2.12 km), (11.658±2.526 km) and (11.724±0.056 km), with a corresponding albedo of (0.41±0.12), (0.351±0.144) and (0.2444±0.0464).[5][12]

Notes

  1. ^ a b Lightcurve plot of (749) Malzovia, by Frederick Pilcher (2014) at the Organ Mesa Observatory (G50) in Arizona. Rotation period 5.9279±0.0001 hours with a brightness amplitude of 0.30±0.03 mag. Quality code is 3–. Summary figures at the LCDB and ASLC website.

References

  1. ^ a b c d e "749 Malzovia (A913 GD)". Minor Planet Center. Retrieved 5 June 2020.
  2. ^
    ISBN 978-3-540-00238-3
    .
  3. ^ a b c d e f g h i "JPL Small-Body Database Browser: 749 Malzovia (A913 GD)" (2020-04-28 last obs.). Jet Propulsion Laboratory. Retrieved 5 June 2020.
  4. ^ a b "Asteroid 749 Malzovia – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 5 June 2020.
  5. ^ a b c "Asteroid 749 Malzovia". Small Bodies Data Ferret. Retrieved 5 June 2020.
  6. ^ a b Zappalà, V.; Bendjoya, Ph.; Cellino, A.; Farinella, P.; Froeschle, C. (1997). "Asteroid Dynamical Families". NASA Planetary Data System: EAR-A-5-DDR-FAMILY-V4.1. Retrieved 5 June 2020.} (PDS main page)
  7. ^
    Bibcode:2016PDSS..247.....M
    . Retrieved 5 June 2020.
  8. ^
    S2CID 119293330
    .
  9. ^
    doi:10.1093/pasj/63.5.1117. (online, AcuA catalog p. 153
    )
  10. ^ a b Behrend, Raoul. "Asteroids and comets rotation curves – (749) Malzovia". Geneva Observatory. Retrieved 5 June 2020.
  11. ^
    S2CID 54978216
    .
  12. ^ a b c "LCDB Data for (749) Malzovia". Asteroid Lightcurve Database (LCDB). Retrieved 5 June 2020.
  13. ISSN 1052-8091. Archived from the original
    (PDF) on 3 October 2020. Retrieved 5 June 2020.
  14. ^ Pilcher, F. (October 2014). "Rotation Period Determinations for 24 Themis, 65 Cybele, 108 Hecuba, 530 Turandot, and 749 Malzovia" (PDF). Minor Planet Bulletin. 41 (4): 250–252.
  15. S2CID 118427201
    .
  16. S2CID 119112278
    .

External links
Retrieved from "https://en.wikipedia.org/w/index.php?title=749_Malzovia&oldid=1195667832"