Spectroscopy : 27
NGC6888
Crescent
Nebula |
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NGC 6888, The Crescent Nebula in Cygnus
Background information and spectra
2025-08-10 @ 22:32 UT
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M86
Radial
Velocity |
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Radial Velocity of M86, elliptical galaxy in Virgo
Details on image
2025-04-17 @ 21:29 UT
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208 Spectra
of Planetary
Nebulae |
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Planetary Nebulae Spectra
Latest image : Spectra of M2-49,Abell55
All taken using the HAG 24" RC 'David Harris' telescope, Lhires III spectroscope, 300gr/mm. Analysis with RSpec software.
Camera and other details on images. Most spectra have light pollution subtracted.
2025-09-04 @ 21:38
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SS433
Microquasar |
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SS433 Microquasar in Aquila
A very unusual binary system. Spectra taken show short period changes.
2024-11-27 @ 19:37 UT
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R Aquarii |
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R Aquarii is an unusual object in the constellation of Aquarius
Background information and spectra
2023-12-29 @ 19:30 UT
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30 Spectra
of Wolf-Rayet
Stars |
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Wolf-Rayet Star Spectra
Latest image: WR142
All taken using the HAG 24" RC 'David Harris' telescope, Lhires III spectroscope, 300gr/mm
SBIG STF-8300M Camera, Analysis with RSpec software. Details on images.
2022-08-27 @ 22:32 UT
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Campbell's
Hydrogen
Star |
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Campbell's Hydrogen Star is an unusual object in the constellation of Cygnus.
Background information and spectra
2022-08-07 @ 22:53 UT
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SS Cygni |
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SS Cygni, a dwarf nova.
It is a type of cataclysmic variable star which can suddenly increase in brightness at irregular intervals.
HAG 24" RC 'David Harris' telescope, Lhires III spectroscope, 300gr/mm
ZWO ASI2600MM Pro camera. Analysis with RSpec software.
2022-07-29 @ 23:18 UT
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3C 273
Quasar |
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Determination of distance to 3C 273 from ts cosmological red shift.
3C 273 is a quasar (active galactic nucleus) in Virgo
HAG 24" RC reflector, ZWO ASI2600M Pro
4 x 30 min, bin x2
2022-04-21 @ 22:18 UT
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M31
Blue shift |
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Measurement of the approach velocity of the Andromeda Galaxy (M31)
from its blue Doppler shift
Wavelength scale calibrated from nearby star Beta Arietis
Details on Image
2021-12-06 @ 21:48 UT
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RS Ophiuchi
Nova |
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RS Ophiuchi nova outburst
Details on image
2021-08-10 @ 21:35 UT
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Nova
Herculis
2021 |
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Nova Herculis 2021
V1674 Her
HAG 24" RC 'David Harris' Telescope + Lhires III spectroscope 300gr/mm, SBIG STF8300M camera
32 x 120 sec
2021-06-15 @ 21:48 UT
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Comet
C/2020 F3
Neowise
Spectrum |
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Spectrum of Comet C/2020 F3 Neowise
HAG 24" RC 'David Harris' Telescope + Lhires III spectroscope 300gr/mm, SBIG STF8300M camera
25 x 30 sec
2020-07-19 @ 23:17 UT
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M76
composition |
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Spectral line intensity across major axis of M76 (NGC650/1)
Shows the variation in composition across the planetary nebula
HAG 24 RC, Lhires 300gr/mm, SBIG STF-8300M
Spectrum: 600s
2019-08-20 @ 22:12 UT
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M57
composition |
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Spectral line intensity across major axis of M57 (NGC 6720), The Ring Nebula
Shows the variation in composition across the planetary nebula.
HAG 24 RC, Lhires 300gr/mm, SBIG STF-8300M
Spectrum: 300s
2019-08-16 @ 20:00 UT (Processed)
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Nova in Cygnus |
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TCP J21040470+4631129, Nova in Cygnus discovered on 12th July 2019, reported magnitude 9
Instrument response corrected spectrum shows emission from Hydrogen and Helium
HAG 24 RC, Lhires III, 300gr/mm, SBIG STF-8300M
12 x 4min
2019-07-14 @ 23:18 UT
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T Corona
Borealis |
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T Corona Borealis - The Blaze Star
A recurrent nova. It is a binary system of a red giant and a white dwarf.
HAG 24in RC, Lhires III 300gr/mm, SBIG STF-8300M, 600s
2019-06-26 @ 22:24 UT
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M1
Expansion |
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Measued expansion of M1 (Crab Nebula) by doppler shift
Details on image
2019-01-27 @ 22:02 UT
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P Cygni |
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P Cygni - A rare luminous blue variable star with a peculiar spectrum
Some lines show both absorption and emission.
HAG 24" RC, Shelyak Lhires spectroscope, SBIG 8300M
see image for details
2018-11-18 & 2018-10-28
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DIBs
Revisited |
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Diffuse Interstellar Bands in the spectrum of Zeta Persei. First detected in 1919 by Mary Heger.
Details on image
2018-11-03 @ 20:19 UT
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Planetary
Methane |
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Spectroscopic detection of methane in planetary atmospheres
HAG 24 RC, Lhires III, 300gr/mm SBIG STF-8300M
See image for details
2018-11-02 to 2019-07-05
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M42 & M57 |
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Comparison of spectra of M42 (Orion nebula) and M57 (Ring nebula)
M42 is a star forming region and M57 is a planetary nebula - the outer atmosphere shed by an old star.
HAG 24" RC. see image for details
2018-06-24 (M57) & 2015-01-18 (M42)
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Sirius |
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Sirius, Alpha Canis Majoris, Spectral type A0.
Top to bottom: Observed spectrum, RSpec graph, RSpec colour representation
Hydrogen absorption spectrum with atmospheric lines at 6300 and 6900
HAG 16" reflector, CCDSPEC spectroscope, Meade DSI2 camera
2015-02-08 @ 19:58 UT
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Nova
Delphini |
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Top to Bottom: Observed spectrum, Analysis, Colour simulation
Analysis using RSpec software gives graph and colour simulation
HAG 24" reflector, CCDSPEC spectroscope, DMK 51AU02 mono camera
2013-08-22 @ 21:32 UT
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Jupiter
Methane
Bands |
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Top to Bottom: Solar Fraunhofer lines, Analysis, Observed spectrum
Analysis shows correspondence with known methane bands
(Observed spectrum is RSpec colour version)
HAG 24" reflector, CCDSPEC spectroscope, DMK 51AU02 mono camera
580 x 1.4 sec frames stacked
2013-04-06 @ 20:25 UT
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Orion
Nebula
M42 |
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M42 - Top to bottom: Observed spectrum, RSpec graph, RSpec colour representation
Line assignments show the major elements in the nebula
HAG 24" reflector, CCDSPEC spectroscope, DMK51AU02 camera
16 x 45sec frames stacked and dark subtracted
2012-12-05
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WR136 |
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Wolf-Rayet Star Spectrum. Comparison of observed and literature spectra
Details on image
HAG 24" reflector, CCDSPEC spectroscope, DMK51AU02 camera
10 x 23sec
2012-11-02
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