2020f3 20200411 cwyatt

Comet Observations 11th April 2020

C/2020 F3 NEOWISE

2020 April 11.38 UT; m1= 13.5; Dia= 0.7’; DC= 2/3; 25cm L, f:5 (x125) [Chris Wyatt, Walcha, NSW, Australia]

Very diffuse, close to mag 11.2 star. Windy conditions.

Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ

C/2019 U6 Lemmon

2020 April 11.39 UT; m1= 10.5; Dia= 4.8’; DC= 4/5; 25cm L, f:5 (x40) [Chris Wyatt, Walcha, NSW, Australia]

Diffuse semi-transparent outer coma, moderately condensed and opaque inner coma. Enhances in Swan Band filter. Windy conditions.

Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ

C/2020 F8 SWAN

2020 April 11.73 UT; m1= 8.0; Dia= 4’; DC= 5; 25cm L, f:5 (x40) [Chris Wyatt, Walcha, NSW, Australia]

Enhances strongly in Swan Band filter; Faint transparent outer coma, gradually brightening to an opaque inner coma with compact centre, not stellar. Visible in 7x50 B’s as a faint smudge.

Comparison stars checked using Tycho-2 data in Guide 9.0; Method= M; Cat= TK