Forum der Vereinigung der Sternfreunde

COMET C/2022 H1 (PANSTARRS)

R. Weryk reports the discovery of a comet in four 45-second w-band survey
images taken on Apr. 21 UT by Pan-STARRS 2 (F52), noting a condensed 0".3 coma
with visible assymetry towards north-west. Pre-discovery positions were reported
from Feb. 2022.

Orbital elements:

C/2022 H1 (PANSTARRS)
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5
T 2024 Jan. 18.84063 TT Rudenko
q 7.6944381 (2000.0) P Q
z +0.0008117 Peri. 246.25496 -0.33464646 +0.93850427
+/-0.0000782 Node 6.37952 -0.30030399 -0.02073283
e 0.9937543 Incl. 49.88880 -0.89321289 -0.34464458
From 59 observations 2022 Mar. 2-May 9, mean residual 0".5.

The following ephemeris by the undersigned from the above orbital elements
uses photometric power-law parameters H = 7.5 and 2.5n = 8 for the
magnitudes.

Date TT R. A. (2000) Decl. Delta r Elong. Phase Mag.
2022 04 11 12 55.30 -31 05.9 7.725 8.653 156.5 2.6 19.4
2022 04 21 12 50.76 -31 07.2 7.700 8.626 155.7 2.7 19.4
2022 05 01 12 46.47 -31 03.8 7.703 8.598 151.0 3.3 19.4
2022 05 11 12 42.63 -30 57.1 7.732 8.571 144.1 4.0 19.4
2022 05 21 12 39.42 -30 48.4 7.787 8.544 136.0 4.7 19.4
2022 05 31 12 36.94 -30 39.2 7.862 8.517 127.5 5.4 19.4
2022 06 10 12 35.28 -30 30.9 7.955 8.491 118.8 6.0 19.4
2022 06 20 12 34.47 -30 24.9 8.062 8.465 110.1 6.5 19.5
2022 06 30 12 34.53 -30 22.2 8.178 8.440 101.5 6.8 19.5
2022 07 10 12 35.42 -30 23.5 8.300 8.415 93.0 6.9 19.5
2022 07 20 12 37.11 -30 29.5 8.422 8.390 84.7 6.9 19.5
2022 07 30 12 39.54 -30 40.6 8.543 8.365 76.6 6.8 19.5
2022 08 09 12 42.64 -30 56.9 8.657 8.341 68.6 6.5 19.6
2022 08 19 12 46.35 -31 18.5 8.762 8.317 60.9 6.1 19.6
2022 08 29 12 50.60 -31 45.5 8.855 8.294 53.5 5.6 19.6
2022 09 08 12 55.32 -32 17.6 8.934 8.271 46.4 5.1 19.6
2022 09 18 13 00.43 -32 54.7 8.996 8.248 39.7 4.5 19.6