[vsnet-alert 25960] Re: [cvnet-outburst] [baavss-alert] TCP J18573095+1653396: bright probable nova (mag. 6.4) in Hercules

[Jeremy Shears]

N Her 2021

June 12 at 22h 12m UT

6.3 vis, 8 x 42 bins

Jeremy

Sent from my iPhone

On 12 Jun 2021, at 23:11, Gary Poyner <garypoyner at gmail.com> wrote:


Nova Her 2021

June 12 22h 06m UT    6.2 visual  10x50B

Comp.star 61 on a 5 degree chart obtained using VSP.

Gary

On Sat, 12 Jun 2021 at 17:08, Patrick Schmeer via groups.io<https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fgroups.io%2F&data=04%7C01%7C%7C5cfb6ff91cbd42279d0e08d92deefab3%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637591326689378594%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=ywXsQU%2FigIXtrd6E0gZxn2WPh0vKpStPE%2BP4iSNBD9s%3D&reserved=0> <pasc1312-aavso=yahoo.de at groups.io<mailto:yahoo.de at groups.io>> wrote:
TCP J18573095+1653396 = ZTF19aasfsjq  (N:)
(submitted to VSX)

Discovered on 2021 June 12.537 UT at mag. 8.4 by Seiji Ueda (Kushiro, Hokkaido, Japan):
http://www.cbat.eps.harvard.edu/unconf/followups/J18573095+1653396.html<https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.cbat.eps.harvard.edu%2Funconf%2Ffollowups%2FJ18573095%2B1653396.html&data=04%7C01%7C%7C5cfb6ff91cbd42279d0e08d92deefab3%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637591326689388592%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=nokVKE1pLV3pTPfy5ZhuKvWTb6%2BLgTJmuHsqf%2BKdeuM%3D&reserved=0>

ZTF light curve, data, and images (via Lasair):
https://lasair.roe.ac.uk/object/ZTF19aasfsjq/<https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Flasair.roe.ac.uk%2Fobject%2FZTF19aasfsjq%2F&data=04%7C01%7C%7C5cfb6ff91cbd42279d0e08d92deefab3%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637591326689388592%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=gxq9mVJRoP3gUyXHKhaGA9c9y4QLeKaNGy0KePCUVIQ%3D&reserved=0>

Possibly recorded on the rise (gmag. ~16.3 on June 12.192 UT) by the ASAS-SN Sky Patrol:
https://asas-sn.osu.edu/sky-patrol/coordinate/a611fda3-59f1-42fd-8e6d-386b21100256<https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fasas-sn.osu.edu%2Fsky-patrol%2Fcoordinate%2Fa611fda3-59f1-42fd-8e6d-386b21100256&data=04%7C01%7C%7C5cfb6ff91cbd42279d0e08d92deefab3%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637591326689398583%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=8uLD2d8nHl8syer93iSQZl6ABupG15q0D5Vq7uaav0c%3D&reserved=0>

Source No. 4514092717838547584 in Gaia EDR3 (Gmag. 19.95).

Spectroscopy and multiband photometry are urgently required.

Clear skies,
Patrick
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References:
All-Sky Automated Survey for Supernovae (ASAS-SN) Sky Patrol:
- Shappee et al., 2014ApJ...788...48S
- Kochanek et al., 2017PASP..129j4502K
Lasair:
- Smith et al., 2019RNAAS...3...26S
Zwicky Transient Facility (ZTF):
- Masci et al., 2019PASP..131a8003M







--
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Gary Poyner FRAS
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