Contact information

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

Ursa Astronomical Association

7354 Ishiguro - 6.11.2021 at 20.52 - 6.11.2021 at 21.13 Orimattila, Artjärvi, Tähtikallio Observation number 102578

Visibility I / V


The asteroid on the outer edge of the main zone of 7354 Ishiguro (1995 BR1,1976 UE11,1982 VV4,1982 XN4) was photographed on the second night of the November 2021 work. When we photographed the fish spiral galaxy NGC 488, this came into the picture like several other asteroids. The asteroid was discovered by the Japanese amateur astronomer Takao Kobayashi at the Oizumi Observatory on January 27, 1995. The asteroid is named after Masato Ishiguro (b. 1945) of the Japanese ALMA project manager (Atacama Large Millimeter / submillimeter Array). Source IEEE Xplore https://ieeexplore / author / 37283622700 .

The size of the asteroid is 7.54km and the rotation speed is 6.224h / r. When photographed, the asteroid was 2,525au away and the closest October 19, 2021 2,447au.

1Picture. first image in the series1 L120s measured, 2021-11-06UT 18: 52: 12UT 2459525.28625JDUT 01h22m31.20s + 05d11'49.3 "18.734mag Std Dev 61.254 SNR6.317 FWHM3.635", JPL Horizon 18: 52: 12UT 01h22m31.22s + 05d11'49.6 "18.213 mag.

2Picture. last image in the series11 L120s measured, 2021-11-06UT 19: 15: 50UT 2459525.30076JDUT 01h22m30.61s + 05d11'47.1 "18.575mag Std Dev 57.464 SNR7.662 FWHM4.903", JPL Horizon 19: 15: 50UT 01h22m30.66s + 05d11'47.2 "18.213 mag.

3Picture summary image of the L120s 1-11 image stack, motion is displayed. Asteroid (17604) 1995 SO26 18.126mag, motion shown. Asteroid (120955) 1998 UO31 18.551mag, motion shown. Asteroid (38327) 1999 RX128 19.017mag, motion shown. Asteroid (153179) 2000 UM36 19.568mag motion is displayed. Asteroid (128100) 2003 PY9 19.701mag, motion not shown. Asteroid (429176) 2009 VV80 20.164mag, motion shown. Asteroid (170420) 2003 UL71 20.216mag, difficult to see? Asteroid (141433) 2002 CX12 19.895mag, motion shown. No other asteroids below 20.2 mag are shown. TYC 27-296-1 v. 12.83mag stars used to calibrate brightness measurement.


Additional information
  • Observation target
    • Asteroid
  • Name of the observation target
    • 7354 Ishiguro
  • Seeing
    • Good
Technical information

Alluna RC16, C415 / 3320, Moravian G4-16000EC MkII, filter L, bin3 11 x 120s

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