Contact information

Skywarden,
Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki
taivaanvahti(at)ursa.fi

Ursa Astronomical Association

(215188) 2000 NM - 13.8.2022 at 01.22 - 13.8.2022 at 01.35 Orimattila, Artjärvi, Tähtikallio Observation number 109026

Visibility II / V


(215188) 2000 NM (2000 NM) Apollo NEO +1km asteroid photographed on the first night of the August talcos. The asteroid was discovered by American amateur astronomer Leonard L. Amburgey Scott Observatory (823 – Fitchburg) on July 2, 2000. School teacher Leonard Amburgey has found a total of 2 asteroids in his backyard observatory in the town of Fitchburg in northern Worcester County, Massachusetts. Source Wikipedia https://en.wikipedia.org/wiki/Leonard_L._Amburgey . The entire estimate for the asteroid is 2.9 km and the rotation speed is 9.24 km. Spectral class Spec_B=>Sr . When photographed, the asteroid was at a distance of 0.2875au and at its closest on June 23, 2022 at 0.25327au. At the time of writing this report on September 2, 2022, we have just received the observatory code M31 for the Ursa observation center. The sightings of this asteroid belong to the first set of sightings reported by the MPC, although the 27-28.8 days first. Found at https://minorplanetcenter.net/db_search/show_object?object_id=215188 . Amateur observatories have photographed this object a lot, as it appears from the previous source.

1Fig. first image of the series L60s measured, 2022-08-12T 22:21:55UT 2459804.43188JDUT 14h38m54.67s +43d35'15.4" 16.040mag Std Dev 182.393 SNR26.850 FWHM6.163" ,JPL Horizon 22:24.62m54.67s +43d35'15.4" 43d35'14.0" 16.024mag .

2Fig. the last measurable 11 image of the series L60s measured, 2022-08-12T 22:34:23UT 2459804.44054JDUT 14h38m53.61s +43d35'57.2" 16.071mag Std Dev 140.814 SNR34.568 FWHM6.070" ,JPL Horizon 26m12h53:34:34 61s +43d35'55.6" 16.024mag.

3 Image sum image L60s 1-11 from a stack of images, movement is visible. There are no other asteroids below 24.0 mag in the picture.

TYC 3042-418-1 v.11.89mag star used for brightness measurement calibration.


Additional information
  • Observation target
    • Asteroid
  • Name of the observation target
    • (215188) 2000 NM
  • Seeing
    • Average
Technical information

Alluna RC16, C415/3320, Moravian G4-16000EC MkII, filter L, bin3 11 x 60s

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