Sun WL, CaK and Ha - 4 June 2023 - and a surprise (Roberto Botero)

Contains: Solar system body or event

Sun WL, CaK and Ha - 4 June 2023 - and a surprise

Revision title: Sun CaK

Acquisition type: Lucky imaging

Sun WL, CaK and Ha - 4 June 2023 - and a surprise

Revision title: Sun CaK

Acquisition type: Lucky imaging

Three discs in three different wavelengths. CaK using a Lunt module, Ha using a DS SM60 and WL using a Baader Herschel wedge all through the 94mm f/7 Christen-Moonraker refractor. The transit of the plane in front of the Sun was at 7:51UT and data from FlightRadar24 shows it was Air Malta KM100 (an A320 landing at Heathrow a few minutes later).

At least 8 active regions visible on the face of the Sun this morning with AR13321 and 323 the most prominent.

CaK - 0.11ms / gain 200 / gamma 10 / 124fps
WL - 0.26ms / gain 210 / gamma 1 / 124fps
Ha - 0.34ms / gain 210 / gamma 56 / 127fps

Added close-ups of AR13321 and 323 in the same passbands as above. Using 3X barlow for EFL of ~3000mm. Seeing not good enough for WL work with the TEC250MC.

B

Title: Sun CaK

Description: CaK

Uploaded: ...

C

Title: Sun WL

Description: WL

Uploaded: ...

D

Title: Sun Ha

Description: Ha

Uploaded: ...

E

Title: WL - close-up of AR13321 and 323

Description: WL - close-up

Uploaded: ...

F

Title: CaK - close-up of AR13321 and 323

Description: CaK - close-up

Uploaded: ...

G

Title: Ha - close-up of AR13321 and 323

Description: Ha - close-up

Uploaded: ...

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Sun WL, CaK and Ha - 4 June 2023 - and a surprise

Revision title: Sun CaK

Sun WL, CaK and Ha - 4 June 2023 - and a surprise

Revision title: Sun CaK

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Sun WL, CaK and Ha - 4 June 2023 - and a surprise

Revision title: Sun CaK

Sun WL, CaK and Ha - 4 June 2023 - and a surprise

Revision title: Sun CaK

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