2023-04-10, 09:32 AM
I used the “Database Power Search Tool” in SkyTools 4 Imaging to select and download a list of Quasars with a Redshift (z) between 4 and 6.
One of these was BR 1202-0725 in Virgo with z = 4.69
Summary of Quasar details from ST4 Imaging:
BR 1202-0725, Quasar, aka Q1202-0725
R.A. 12h05m23.1s Dec.: -07°42'32" (2000) in Virgo
Magnitude: 18.70 R
Redshift (z): 4.69
Light Time: 12.0 Gyr
Apparent Data for 2023 Apr 9 GMT+10:
Apparent RA: 12h06m35.3s, Apparent Dec: -07°50'23"
Tak Mewlon 210 F11.5
Tak x0.8 Reducer
QHY268M Pro camera 53x60 sec exposures
To pinpoint the location, along with the DSS Download from within ST4, I also used a reference image from a paper titled “ISO observations of the dusty quasar BR 1202-0725” at:
ISO observations of the dusty quasar BR 1202-0725 | Monthly Notices of the Royal Astronomical Society | Oxford Academic (oup.com)
From the Bortle 6/7 skies of suburban Brisbane, I was able to record stars beyond mag 20.
Cheers
Dennis
One of these was BR 1202-0725 in Virgo with z = 4.69
Summary of Quasar details from ST4 Imaging:
BR 1202-0725, Quasar, aka Q1202-0725
R.A. 12h05m23.1s Dec.: -07°42'32" (2000) in Virgo
Magnitude: 18.70 R
Redshift (z): 4.69
Light Time: 12.0 Gyr
Apparent Data for 2023 Apr 9 GMT+10:
Apparent RA: 12h06m35.3s, Apparent Dec: -07°50'23"
Tak Mewlon 210 F11.5
Tak x0.8 Reducer
QHY268M Pro camera 53x60 sec exposures
To pinpoint the location, along with the DSS Download from within ST4, I also used a reference image from a paper titled “ISO observations of the dusty quasar BR 1202-0725” at:
ISO observations of the dusty quasar BR 1202-0725 | Monthly Notices of the Royal Astronomical Society | Oxford Academic (oup.com)
From the Bortle 6/7 skies of suburban Brisbane, I was able to record stars beyond mag 20.
Cheers
Dennis