After checking "the sleepy" T CrB, my next target was this "new" star in the constellation Aquila.
The reddening of the Possible Nova is caused by the Interstellar extinction. It is very bright with a 5nm Hydrogen-Alfa filter as shown in the 2. image, indicating bright emission lines.

Nova short explanation :
https://youtu.be/mPDqUZYYA5w?si=JsOcHRkIcgFXyCr_

Time: 00:03UT 2026-05-02 Filter & Exp. R(7x65) G(7x125) B(15x185)Sec

Time: 01:00UT 2026-05-02 Filter & Exp.H-alpha 5nm (9x185)Sec
Tel: C14 @ f/4.1 ST-7 CCD @ -25°C 1.28"/pix Paramount GT-1100S
Odd Trondal Obs.code 238 (Uranium). Oslo Norway.

AT2026lck (= DCAP32) (= ZTF26aatyimr) discovered 2026/04/24.413 at R.A. = 18h43m58s.555, Decl. = +01°52'48".46 Mag 15.9:4/24, Type Nova? (References: TNS)

Reference David Bishop http://www.rochesterastronomy.org/snimages/

Discovery page (References: TNS):
https://www.wis-tns.org/object/2026lck

Reference image from DSS II Red