Charles Bell

@cbellh47

IAU MPC Observatory code H47 Vicksburg; Comet and Minor Planet Astrometry, Observation and Study

32.2663, -90.8561
Vrijeme pridruživanja: veljača 2009.

Medijski sadržaj

  1. 4. velj

    Comt 246P/NEAT 2020-Feb-02 10:47:54 UTC has returned to the eastern morning sky in Virgo. It has its typical short dust tail and looks much the same as it did during the previous return.

  2. 30. sij

    Caroline Herschel's drawings of Halley's comet, 1836

  3. 17. sij
  4. 15. sij
  5. 10. sij

    New comet C/2019 Y4 (ATLAS) has orbital elements very similar to those for C/1844 Y1 (Great Comet). The suggestion was initially made by M. Meyer when the 2019-2020 arc was ~three days.

  6. 6. sij

    Congratulations to T05 ATLAS-HKO, Haleakala on their discovery of comet C/2019 Y1 (ATLAS)

  7. 1. sij

    My first comet image of 2020 Comet C/2017 T2 (PANSTARRS) at 2020-Jan-01 00:29:41 UTC, 55 secs R filter North up East left.

  8. 27. pro 2019.

    Earth is very close to the orbit plane of comet 155P/Shoemaker. Passes through on 2019-Dec-29 More info at

  9. 25. pro 2019.

    Truly remarkable. The NEOCPNomin orbit of PCCP object A10iMHA after 8 days and 77 observations continues to be very similar to the orbits of C/1988 A1 (Liller), C/1996 Q1 (Tabur), and C/2015 F3 (SWAN). amazing

  10. 19. pro 2019.

    Reinder Bouma first noted PCCP object A10iMHA similar orbit to C/1988 A1 (Liller) Z. Sekanina and R. Kracht C/1988 A1 (Liller), C/1996 Q1 (Tabur), and C/2015 F3 (SWAN) are a likely genetic trio The Astrophysical Journal May 2016 so now we may have a quartet

    Prikaži ovu nit
  11. 12. pro 2019.

    The tail on comet 384P/Kowalski almost directly away from the sun with hardly any apparent curvature toward -v. Just not your typical JFC thick dust tail. seems odd to me.

  12. 11. pro 2019.

    A solar system body such as 2I/Borisov passes closest to Earth when the deltdot column of a JPL Horizons ephemeris changes sign. That occurs on 2019-Dec-28 04:18 UT if you narrow the time increment down to minutes. JPL maintain orbits up to date and you can rely on it.

  13. 7. pro 2019.

    The dust tail on comet 155P/Shoemaker 2019-Dec-04 10:37:19 UTC extends at least 7 arc minutes. It passed perihelion on 2019-Nov-15 at 1.802 au.

  14. 4. pro 2019.

    Hisayoshi Kato posted a second night's image of comet 2I/Borisov showing blue-green coma from gas emission and provides links to previous nights for comparison.

  15. 2. pro 2019.

    Hisayoshi Kato posted a color image of comet 2I/Borisov showing a bluish green coma taken on 2019-Nov-29 which indicates gas emission. This may be a first and a very important development. 2I/Borisov November 29, 2019

  16. 2. pro 2019.
  17. 1. pro 2019.

    Comet 384P/Kowalski has short dust tail extending westward. Af rho is very small 2019-Nov-29 09:37:24 UTC

  18. 30. stu 2019.

    Just eyeballing the plot, I would say that it is about time for another big one.

  19. 24. stu 2019.

    Comet 155P/Shoemaker 2019-Nov-24 11:32:01 UTC Dust tail developing 9 days after perihelion

  20. 24. stu 2019.

    Comet 384P/Kowalski 2019-Nov-20 08:26:39 UTC has a short tail pointing westward.

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