ZTF J191837.29+212722.1: FU Ori outburst?

From ATLAS data. Not much variation until 2022. Recent brightening.

2MASS 191837.288 +212722.31 (2000.0) 13.810 12.942 12.628 191837.292 +212722.14 (2000.0) Gaia_DR2_4517076551873840384 plx=1.660(0.085) dismod=8.9 pmra=0.697(0.116) pmdec=-6.845(0.153) G=17.188 BP=18.800 RP=15.916 191837.292 +212722.13 (2000.0) Gaia_EDR3_4517076551873840384 plx=1.533(0.063) dismod=9.1 pmra=0.700(0.058) pmdec=-6.627(0.065) G=17.150 BP=18.664 RP=15.905

The object is too underluminous for a Mira/SR (thus not likely a symbiotic nova). FU Ori star? Somewhat close to a star-forming region.

YYYYMMDD(UT) mag observer 20230521.5095 16.341o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230521.5127 16.382o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230521.5160 16.360o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230521.5240 16.298o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230523.5956 16.232o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230523.5997 16.211o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230523.6048 16.212o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230523.6107 16.169o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230523.6191 16.251o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230525.5757 16.357o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230525.5794 16.370o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230525.6000 16.370o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230525.6073 16.339o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230527.4842 16.299o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230527.4869 16.306o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230527.4934 16.297o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230527.4985 16.324o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230529.4600 16.191o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230529.4628 16.198o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230529.4685 16.201o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230529.4785 16.214o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230606.4791 16.017o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230606.4820 15.994o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230606.4857 15.978o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230606.4909 15.927o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230608.4794 16.005o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230608.4808 15.980o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230608.4839 15.954o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230608.5106 15.980o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230610.4609 15.966o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230610.4638 15.959o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230610.4692 15.989o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230610.4745 16.000o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230612.4449 16.822c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230612.4477 16.787c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230612.4693 16.832c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230612.4837 16.876c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230614.4493 17.049c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230614.4508 17.117c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230614.4540 17.179c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230614.4671 17.170c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230615.1830 16.840c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230615.1972 17.093c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230615.2009 16.956c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230615.2058 16.907c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230616.4438 17.053c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230616.4452 17.019c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230616.4589 17.062c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230616.4649 17.028c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230618.4436 16.961c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230618.4450 16.992c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230618.4497 17.046c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230618.4655 16.973c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230620.4350 16.609c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230620.4359 16.483c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230620.4373 16.551c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230620.4377 16.543c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230620.4418 16.583c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230620.4429 16.590c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230620.4468 16.647c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230620.4517 16.769c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230622.4667 16.049c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230622.4681 16.053c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230622.4709 16.021c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230622.4759 15.962c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230628.4347 14.391o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230628.4385 14.363o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230628.4446 14.366o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230628.4527 14.385o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230630.4306 14.433o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230630.4319 14.431o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230630.4347 14.418o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230630.4407 14.364o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230701.1899 14.544o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230701.1912 14.572o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230701.1948 14.537o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230701.2021 14.547o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230703.2326 15.158o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230703.2354 15.148o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230703.2708 15.004o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230703.2772 15.083o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230704.4335 15.305o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230704.4348 15.324o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230704.4387 15.323o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230704.4452 15.317o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230706.4301 15.037o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230706.4319 15.043o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230706.4346 15.032o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230706.4409 15.011o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230708.4715 14.816o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230708.4956 14.824o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230708.4978 14.795o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230708.5259 14.899o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230709.2206 14.746o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230709.2257 14.735o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230709.2289 14.762o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230709.2588 14.835o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230712.4563 15.156c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230712.4595 15.151c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230712.4653 15.133c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230712.4685 15.209c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230712.4738 15.117c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230712.4765 15.094c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230712.4881 15.117c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230712.4913 15.329c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230714.4602 15.006c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230714.4634 15.019c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230714.4969 15.089c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230714.5143 15.035c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230715.2108 13.945o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230715.2377 13.923o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230715.2409 13.937o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230715.2469 13.928o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230716.4238 15.253c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230716.4573 15.140c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230716.4602 15.131c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230716.4656 15.172c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230720.4757 14.639c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230720.4784 14.670c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230720.4793 14.625c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230720.4867 14.617c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230720.4922 14.629c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230720.4974 14.579c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230721.2031 14.002o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230721.2081 13.669o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230721.2260 13.872o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230721.2287 13.964o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230722.4230 14.782c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230722.4540 14.808c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230722.4570 14.846c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230722.4620 14.818c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230724.4232 14.666c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230724.4261 14.726c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230724.4316 14.692c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230724.4675 14.789c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230726.4292 14.475c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230726.4325 14.504c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230726.4397 14.491c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230726.4495 14.516c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230728.4094 13.927o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230728.4126 13.923o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230728.4200 13.927o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230728.4299 13.961o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230730.4081 13.737o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230730.4117 13.723o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230730.4172 13.711o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230730.4271 13.712o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230801.3906 13.759o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230801.3990 13.789o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230801.4023 13.773o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021))