[Iaude] MPEC C86: COMET C/2024 B1 (Lemmon)
mpec at cfa.harvard.edu
mpec at cfa.harvard.edu
Thu Feb 8 11:25:58 EST 2024
M.P.E.C. 2024-C86 Issued 2024 February 8, 16:22 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets, routine data on comets and natural satellites,
and occasional editorial announcements. They are published
on behalf of Division F of the International Astronomical Union by the
Minor Planet Center, Smithsonian Astrophysical Observatory,
Cambridge, MA 02138, U.S.A.
Prepared using the Tamkin Foundation Computer Network
MPC at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
COMET C/2024 B1 (Lemmon)
R. Weryk reports cometary activity of an asteroidal NEOCP candidate
(first reported by Mt. Lemmon Survey - G96 on Jan. 16 UT) in prediscovery
images taken on Dec. 15 by Pan-STARRS 1 (F51), noting a condensed coma
in four 45-second w-band exposures under poor seeing conditions. Prediscovery
positions were reported back to Oct. 2023. Additional reports of cometary
features are as follows:
OC Date Reporter Coma Tail PA Exposures
X07 2024-01-31 H. Sato 7" 20x60s
204 2024-02-01 A. Aletti 5" 240x30s
Observations:
CK24B010 C2023 10 13.58514805 21 27.117-19 28 59.04 22.81GVEC086F51
CK24B010 C2023 10 13.59547905 21 26.915-19 29 01.50 22.53GVEC086F51
CK24B010 C2023 10 19.54373505 19 09.036-19 50 26.33 21.84GVEC086F52
CK24B010 C2023 10 19.55333305 19 08.768-19 50 28.54 23.00GVEC086F52
CK24B010 C2023 10 19.57253805 19 08.262-19 50 32.27 22.31GVEC086F52
CK24B010 C2023 10 23.61131605 17 10.616-20 03 53.05 22.39GVEC086F52
CK24B010 C2023 10 23.62286905 17 10.275-20 03 55.20 23.72GVEC086F52
CK24B010 C2023 11 20.44688004 55 08.405-20 42 33.33 21.54GVEC086F52
CK24B010 C2023 11 20.45794904 55 07.709-20 42 32.40 21.65GVEC086F52
CK24B010 C2023 11 20.46899404 55 07.009-20 42 31.94 21.83GVEC086F52
CK24B010 C2023 12 05.40500704 38 29.250-19 59 48.27 20.36GVEC086F51
CK24B010 C2023 12 05.43361904 38 27.234-19 59 40.17 20.74GVEC086F51
CK24B010 C2023 12 05.44418104 38 26.473-19 59 36.75 20.59GVEC086F51
CK24B010 C2023 12 09.38916804 33 47.400-19 38 37.73 21.99GVEC086F51
CK24B010 C2023 12 09.40798104 33 46.051-19 38 30.71 21.10GVEC086F51
CK24B010 C2023 12 09.42214904 33 45.004-19 38 25.83 21.33GVEC086F51
CK24B010 C2023 12 15.39256304 26 41.093-18 58 31.15 20.85GVEC086F51
CK24B010 C2023 12 15.40944604 26 39.883-18 58 23.33 20.17GVEC086F51
CK24B010 C2023 12 15.42454404 26 38.790-18 58 16.44 20.82GVEC086F51
CK24B010 C2023 12 15.43834304 26 37.778-18 58 10.23 20.66GVEC086F51
CK24B010 C2023 12 24.32445404 16 23.307-17 40 54.04 21.59GVEC086F52
CK24B010 C2023 12 24.35770204 16 21.040-17 40 35.42 21.70GVEC086F52
CK24B010 C2024 01 03.31704004 05 48.685-15 50 48.27 20.65GVEC086F51
CK24B010 C2024 01 03.32904204 05 47.993-15 50 39.09 20.33GVEC086F51
CK24B010*1C2024 01 16.17491003 54 33.404-12 59 26.66 20.65GVEC086G96
CK24B010 1C2024 01 16.18055303 54 33.095-12 59 22.13 20.71GVEC086G96
CK24B010 1C2024 01 16.18618703 54 32.890-12 59 17.02 21.43GVEC086G96
CK24B010 1C2024 01 16.19182403 54 32.576-12 59 12.08 20.98GVEC086G96
CK24B010 KC2024 01 16.23488903 54 30.640-12 58 33.20 VEC086V06
CK24B010 KC2024 01 16.23737203 54 30.580-12 58 32.20 VEC086V06
CK24B010 KC2024 01 16.23985403 54 30.370-12 58 29.90 21.27GVEC086V06
CK24B010 KC2024 01 16.24233903 54 30.290-12 58 27.70 21.04GVEC086V06
CK24B010 C2024 01 17.06799403 53 53.738-12 46 32.44 21.0 GVEC086H01
CK24B010 C2024 01 17.07193503 53 53.565-12 46 28.91 20.9 GVEC086H01
CK24B010 C2024 01 17.08387703 53 53.029-12 46 18.78 21.0 GVEC086H01
CK24B010 C2024 01 17.08903303 53 52.794-12 46 13.97 21.2 GVEC086H01
CK24B010 KB2024 01 29.72293 03 46 20.49 -09 34 09.7 20.2 RZEC086106
CK24B010 KB2024 01 29.73299 03 46 20.23 -09 33 58.7 20.3 RZEC086106
CK24B010 KB2024 01 29.74350 03 46 19.96 -09 33 50.1 19.8 RZEC086106
CK24B010 KB2024 01 29.75372 03 46 19.65 -09 33 40.9 20.1 RZEC086106
CK24B010 0C2024 01 31.04551 03 45 45.21 -09 13 09.9 VEC086X07
CK24B010 0C2024 01 31.05436 03 45 44.95 -09 13 01.8 20.6 GVEC086X07
CK24B010 KC2024 01 31.75351503 45 27.37 -09 01 57.6 19.9 GVEC086L06
CK24B010 KC2024 01 31.75818803 45 27.26 -09 01 53.7 20.2 GVEC086L06
CK24B010 KC2024 01 31.76169303 45 27.15 -09 01 50.9 20.3 GVEC086L06
CK24B010 HB2024 02 01.78484 03 45 02.38 -08 45 31.4 VEC086204
CK24B010 KB2024 02 01.81685 03 45 01.60 -08 45 00.4 20.5 GVEC086204
CK24B010 KC2024 02 01.82544 03 45 01.39 -08 44 52.9 VEC086204
CK24B010 KC2024 02 01.86727 03 45 00.38 -08 44 12.1 20.5 GVEC086204
CK24B010 KC2024 02 02.03685 03 44 56.41 -08 41 27.1 21.0 GVEC086X03
CK24B010 KC2024 02 02.05681 03 44 55.90 -08 41 08.6 20.7 GVEC086X03
CK24B010 KC2024 02 02.07599 03 44 55.51 -08 40 49.2 20.3 GVEC086X03
CK24B010 KC2024 02 02.09439 03 44 55.09 -08 40 31.5 21.0 GVEC086X03
Observer details:
106 Crni Vrh. Observer J. Vales. 0.60-m f/3.3 reflector + CMO.
204 Schiaparelli Observatory. Observers L. Buzzi, A. Aletti. Measurers L.
Buzzi, A. Aletti, M. Auteri. 0.84-m f/3.5 reflector + CMO, 0.36-m f/7.5
reflector + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Herman, T. Lowe, P. Minguez, A.
Schultz, I. Smith. Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
Weryk. 1.8-m Ritchey-Chretien + CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Herman, T. Lowe, P. Minguez, A.
Schultz, I. Smith. Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
Weryk. 1.8-m Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observer J. K. Hogan. Measurers T. Beuden, V. F.
Carvajal, D. Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H.
Groeller, J. K. Hogan, R. A. Kowalski, S. M. Larson, G. J. Leonard, D.
Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos. 1.5-m reflector +
10K CCD.
H01 Magdalena Ridge Observatory, Socorro. Observers W. H. Ryan, E. V. Ryan.
Measurer W. H. Ryan. 2.4-m f/8.9 Ritchey-Chretien + CCD.
L06 Sormano 2 Observatory, Bellagio Via Lattea. Observers E. Valli, G.
Ventre. Measurer P. Sicoli. 0.36m Schmidt Cassegrain + CCD.
V06 Catalina Sky Survey-Kuiper. Observer G. J. Leonard. Measurers T. Beuden,
V. F. Carvajal, D. Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, A. D.
Grauer, H. Groeller, J. K. Hogan, R. A. Kowalski, S. M. Larson, G. J.
Leonard, D. Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos. 1.55-m
reflector + 1K CCD.
X03 Observatoire SADR, Poroto. Observers J. L. Virlichie, P. Traverse, H.
Roy. Measurer J. L. Virlichie. 0.36-m f/4.8 reflector + CCD.
X07 iTelescope Deep Sky Chile, Rio Hurtado. Observer H. Sato. 0.51-m f/6.8
astrograph + CCD.
Orbital elements:
C/2024 B1 (Lemmon)
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2024 Oct. 7.74710 TT Bell
q 1.6330468 (2000.0) P Q
z -0.0004969 Peri. 66.23065 -0.21908572 -0.30116649
+/-0.0000308 Node 79.20379 +0.07085445 -0.95357019
e 1.0008114 Incl. 70.87143 +0.97312954 +0.00162713
>From 53 observations 2023 Oct. 13-2024 Feb. 2, mean residual 0".4.
Ephemeris:
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2024 01 09 04 00 27.6 -14 38 38 3.1032 3.6853 119.3 13.5 21.1
...
2024 01 24 03 49 19.7 -11 03 07 3.1380 3.5430 106.3 15.5 21.0
...
2024 02 01 03 45 21.2 -08 58 01 3.1709 3.4670 99.2 16.3 20.9
...
2024 02 07 03 43 17.8 -07 21 29 3.2001 3.4099 93.8 16.8 20.9
2024 02 08 03 43 01.8 -07 05 14 3.2052 3.4004 92.9 16.8 20.8
2024 02 09 03 42 47.1 -06 48 57 3.2104 3.3909 92.0 16.9 20.8
...
2024 02 15 03 41 46.2 -05 10 41 3.2429 3.3338 86.6 17.2 20.8
...
2024 02 23 03 41 34.8 -02 59 01 3.2876 3.2576 79.6 17.4 20.7
...
2024 03 09 03 44 32.2 +01 06 31 3.3689 3.1148 66.8 17.0 20.6
M. P. C. Staff (C) Copyright 2024 MPC M.P.E.C. 2024-C86
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