M 87 is a supergiant elliptical galaxy in the constellation Virgo, approximately 54 million light years from Earth. Almost featureless and without dust lanes, its stars show a nearly perfect spherical distribution and the galaxy's luminosity diminishes with distance from its center. M 87 is known for its large number of globular clusters, approximately 1,200 (compared to the Milky Way's 150-200). Globular clusters are groups of very old stars tightly bound by gravity.
M 87 lies at the center of the Virgo cluster, more than 1,300 galaxies covering approximately 8 degrees in the sky (for reference, the moon's diameter is approximately 1/2 degree, so the Virgo cluster spans 16 moon-diameters).
626 5-minute exposures were taken using Luminance, Red and Green filters using 3 telescopes on our widefield array, totaling 52 hours. We shot Blue exposures, but these were technically unusable. Instead, we constructed a synthetic Blue channel by subtracting Red and Green channels from the Luminance (white light) channel. The result is a fair approximation of true color. The image was processed in PixInsight and Photoshop.
Shot and processed by the SC Observatory Team: Mike Selby, Stefan Schmidt and Andy Chatman
Integrated Flux Nebula in Virgo
Right Ascension: 12h 30m 49s
Declination: +12° 23′ 28″
Magnitude: 9.59
Moon Age Average: 20.80 days
Moon Phase Average: 6.91 %
SC Observatory, Central Thailand
Voyager
Adobe Photoshop
PixInsight 1.8
Filter | Filter Brand | Bin | Qty | Exposure |
---|---|---|---|---|
L | Astrodon | 1x | 159 | 300 |
R | Astrodon | 1x | 64 | 300 |
SC Observatory, Central Thailand
Voyager
Adobe Photoshop
PixInsight 1.8
Filter | Filter Brand | Bin | Qty | Exposure |
---|---|---|---|---|
L | Baader | 1x | 160 | 300 |
G | Baader | 1x | 64 | 300 |
SC Observatory, Central Thailand
Voyager
Adobe Photoshop
PixInsight 1.8
Filter | Filter Brand | Bin | Qty | Exposure |
---|---|---|---|---|
L | FLI Chroma | 1x | 179 | 300 |