Spectrum: Comet ISON

The spectrum below of the comet ISON shows how easy it is for amateurs to study astronomical spectra. This wonderful spectrum of ISON using a just an 80 mm refractor, simple Star Analyser grating, and a DSLR. It clearly shows the green glow from glowing Carbon (the so-called “Swan bands” – Wikipedia link) This image was captured from a rooftop in Rajasthan, and then processed in the RSpec software.

Comet C/2013 X1 PanSTARRS

We carried out the spectroscopy of Comet C/2013 X1 PanSTARRS (Vmag = +9.67) as on 2016.01.09, using LHIRES-III spectrograph (23µm long slit, R=700, Angstrom /Pixel (A/P) =3.0) fixed on 0.20m SCT. The spectral image captured using Atik460ex cooled monochrome CCD coupled with LHIRES-III spectrograph. The image guided over spectrograph slit using Atik 383L+ monochrome CCD to get better S/N ratio. Comet seems enriched with C2,C2,CH+ & CN.
The spectral data corrected for instrument response and normalized. We used following software for different purposes.
APT Tool: LHIRES guiding/Histogram/Capture
Telescope control: Starry Night pro7 + EQMOD
CCDstack2.0: Image calibration
RSpec: Spectroscopy
Cepheids Astronomy Group, RBT, India.

Comet C/2013 US10 Catalina

We carried out the spectroscopy of comet C/2013 US10 Catalina (Vmag = +6.1) as on 20th December-2015, using LHIRES-III spectrograph (23µm long slit, R=700, Angstrom /Pixel (A/P) =3.0) fixed on 0.20m SCT. The spectral image captured using Atik460ex cooled monochrome CCD coupled with LHIRES-III spectrograph. The image guided over spectrograph slit using Atik 383L+ monochrome CCD to get better S/N ratio. Comet seems enriched with C2,C2,CH+,CO+ & CN.
The spectral data corrected for instrument response and normalized. We used following software for different purposes.
APT Tool: LHIRES guiding/Histogram/Capture
Telescope control: Starry Night pro7 + EQMOD
CCDstack2.0: Image calibration
RSpec: Spectroscopy
Cepheids Astronomy Group, RBT, India.