Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

CBAT "Transient Object Followup Reports"

TCP J17064645-3528079

TCP J17064645-3528079   2024 09 09.4363*  17 06 46.45 -35 28 07.9  11.4 U             Sco       I 0


2024 09 09.474

Independent discovery by Andrew Pearce, Nedlands, Western Australia using Canon 800D camera and 85mm f/1.2 lens. Visible on 3 images. Position RA 17 06 45.71 Dec -35 28 04.6. Sept 9.474 UT magnitude 11.3 (unfiltered). Not visible on images taken on Aug 11.444 UT to a limiting magnitude of 12.0.



2024 09 09.436

Discovery: 180mm camera lens F/2.8 + CCD (KAF-6303E), Confirmation= 0.5-m F/6.9 +CCD (KAF-1001E), 2024 09 09.486, 17 06 46.57 -35 28 06.3 Mag=10.7, Image: http://k-itagaki.jp/images/Sco-2024-09.jpg



2024 09 09.5285

Following the posting on the Central Bureau's Transient Object Confirmation Page about a possible Nova in Sco (TOCP Designation: TCP J17064645-3528079) we performed some follow-up of this object through a TEL 0.1-m f/3.56 astrograph + CMOS located in Yass, North South Wales in Australia and operated by Telescope Live network (MPC code Q56). On images taken on September 09.5, 2024 we can confirm the presence of an optical counterpart with R-filtered CMOS magnitude +10.6 at coordinates: R.A. = 17 06 46.54, Decl.= -35 28 07.0 (equinox 2000.0; Gaia DR2 catalogue reference stars for astrometry). Our confirmation image: https://tinyurl.com/possnovasco - An animation showing a comparison between our image and an archive POSS plate: https://tinyurl.com/possnovasco24 - Ernesto Guido & Marco Rocchetto



2024 09 09.579

Position end figures 46s.54, 06.7" measured with 0.05m f/5 refractor + CCD. J2000, Gaia DR3 positions. No obvious progenitor at this position. Gaia 5977230501831148928 (magnitude 20.6 G) located 1.6" away from this position. Photometry - magnitude 11.06 (TG), 11.88 (TB) and 10.43 (TR). Andrew Pearce, Nedlands, Western Australia



2024 09 09.5125

Photometry results were B = 12.53, V = 11.29, I = 9.59. position end figures 46s.52, 06".9 with 0.51-m f/6.8 reflector + CCD + f/4.5 focal reducer (T30); remotely Siding Spring Observatory. An image at URL http://orange.zero.jp/k-yoshimoto/TCPJ17064645-3528079_20240909.jpg observed by K. Yoshimoto, Yamaguchi, Japan.



2024 09 09.861

Position end figures 46s.55, 06.7" measured with 0.36m f/8 reflector + CCD at Skygems Observatory, Namibia. J2000, Gaia DR2 positions. Photometry V=10.60 and B=11.75. Andrew Pearce, Nedlands, Western Australia



2024 09 09.4074

Seiji Ueda, Kushiro, Hokkaido, Japan reports to NAOJ. Nothing is visible at this location on three frames (3-s exp. limit mag. 11.6) taken on 2024 Sept. 09. 4074 UT using Canon EOS 6D digital camera + 200-mm F/3.0 lens (unfiltered). --- Isao Endoh (NAOJ)


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