Observation by Robin Leadbeater: C/2023 H2 Lemmon Spectrum

Uploaded by

Robin Leadbeater

Observer

Robin Leadbeater

Observed

2023 Nov 11 - 17:58

Uploaded

2023 Nov 13 - 00:34

Objects

Spectrum
C/2023 H2

Equipment

ALPY 200 spectrograph
ATIK 428 ex camera
Celestron C11 SCT 280mm aperture f5.5

Exposure

5x 300s

Location

Wigton Cumberland UK

Target name

C/2023 H2 (Lemmon)

Title

C/2023 H2 Lemmon Spectrum

About this image

A low (45 Angstrom) resolution spectrum covering the central 2 arcmin diameter of the coma with an experimental, potentially higher efficiency version of the ALPY 200. The full length of the slit covers ~6 arcmin, approx 2/3 of the diameter of the inset in this image by Nick James taken at the same time.

(The image is uncorrected for the instrument response and atmospheric extinction so does not show the CN line in the violet at its true strength, as seen in the spectrum plot. The line above the central coma is from a field star passing through the slit)

Files associated with this observation

C2023H2Lemmon_20231111_poster.png (172.8 kB)

Like this image

Mike Harlow, Hugh Allen

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