Zwicky Transient Facility

ZTF18acrdciw

Cataclysmic variable 23% confidence

A white dwarf flaring as it pulls gas off a companion star.

First detected: 2018-11-20 08:46 UTC; 8 years ago
Last detected: 2026-11-05 11:07 UTC; 13 h ago
Detections: 244
Position (J2000): 07:53:48.78 +02:25:07.9; 118.45326°, 2.41887°

Light curve

Magnitude (brighter ↑). Times in UTC. Hover a point for its value.

Data table (200 points)

Time (UTC)	MJD	Band	Magnitude	Error
2020-10-27 12:00 UTC	59149.5001	g	19.08	—
2020-10-29 11:33 UTC	59151.4818	g	19.13	0.06
2020-10-30 12:31 UTC	59152.5221	g	19.05	0.05
2020-11-04 12:07 UTC	59157.5049	g	19.19	0.12
2020-11-12 10:36 UTC	59165.4417	g	19.05	—
2020-11-15 11:35 UTC	59168.4826	g	19.02	—
2020-11-17 11:05 UTC	59170.4619	g	19.05	—
2020-11-20 11:03 UTC	59173.4609	g	19.09	—
2020-11-23 11:42 UTC	59176.4878	g	18.98	—
2020-11-25 11:46 UTC	59178.4904	g	19.01	—
2020-12-05 10:16 UTC	59188.4281	g	19.11	0.07
2020-12-07 08:55 UTC	59190.3718	g	19.07	0.03
2020-12-10 10:47 UTC	59193.4497	g	19.03	—
2020-12-13 10:05 UTC	59196.4202	g	19.00	0.01
2020-12-16 10:06 UTC	59199.4211	g	19.04	—
2020-12-19 08:37 UTC	59202.3597	g	19.08	0.05
2020-12-21 10:58 UTC	59204.4573	g	19.05	—
2021-01-03 09:38 UTC	59217.4018	g	19.03	0.06
2021-01-07 08:05 UTC	59221.3371	g	18.98	—
2021-01-09 08:05 UTC	59223.3371	g	19.06	—
2021-01-11 08:27 UTC	59225.3526	g	18.98	—
2021-01-17 06:11 UTC	59231.2580	g	18.99	—
2021-02-03 06:27 UTC	59248.2691	g	19.04	—
2021-02-05 06:06 UTC	59250.2548	g	19.11	0.01
2021-02-11 06:36 UTC	59256.2756	g	19.02	—
2021-02-18 06:35 UTC	59263.2750	g	18.98	0.09
2021-02-22 05:37 UTC	59267.2343	g	19.00	0.09
2021-03-03 05:02 UTC	59276.2102	g	19.05	—
2021-03-07 04:33 UTC	59280.1903	g	19.05	—
2021-03-07 04:33 UTC	59280.1903	g	19.05	—
2021-03-19 04:04 UTC	59292.1699	g	19.01	—
2021-03-21 03:34 UTC	59294.1488	g	18.97	0.01
2021-03-30 04:38 UTC	59303.1934	g	18.99	0.06
2021-04-02 04:04 UTC	59306.1700	g	19.03	—
2021-04-04 03:42 UTC	59308.1548	g	19.09	—
2021-04-07 04:39 UTC	59311.1942	g	19.15	0.14
2021-04-09 03:46 UTC	59313.1575	g	19.12	—
2021-04-09 03:46 UTC	59313.1575	g	19.12	—
2021-04-17 04:08 UTC	59321.1728	g	19.00	—
2021-10-01 11:58 UTC	59488.4986	g	19.06	0.07
2021-10-14 10:34 UTC	59501.4405	g	19.13	0.03
2021-10-16 12:19 UTC	59503.5133	g	19.03	—
2021-11-06 12:08 UTC	59524.5062	g	19.04	—
2021-11-08 10:43 UTC	59526.4471	g	19.05	—
2021-11-11 12:04 UTC	59529.5032	g	19.04	—
2021-11-13 09:30 UTC	59531.3960	g	19.12	—
2021-11-18 10:03 UTC	59536.4188	g	19.15	0.11
2021-12-02 07:28 UTC	59550.3114	g	19.03	—
2022-02-26 04:33 UTC	59636.1901	g	19.03	0.07
2022-03-02 04:58 UTC	59640.2071	g	19.04	—
2022-04-03 03:41 UTC	59672.1539	g	19.03	—
2022-04-03 03:41 UTC	59672.1539	g	19.04	—
2022-04-07 05:07 UTC	59676.2138	g	19.00	0.05
2022-04-09 03:45 UTC	59678.1569	g	19.18	0.08
2022-04-16 03:49 UTC	59685.1595	g	19.08	0.11
2022-04-18 04:16 UTC	59687.1779	g	19.03	0.08
2022-04-20 03:51 UTC	59689.1606	g	19.02	0.05
2022-04-26 04:09 UTC	59695.1730	g	19.06	0.02
2022-10-01 11:52 UTC	59853.4947	g	19.08	—
2022-10-04 10:36 UTC	59856.4419	g	19.08	0.01
2022-10-08 12:04 UTC	59860.5033	g	19.02	0.10
2022-10-14 11:27 UTC	59866.4772	g	19.09	0.08
2022-10-20 11:05 UTC	59872.4622	g	19.03	0.04
2022-10-26 10:11 UTC	59878.4244	g	19.10	—
2022-10-28 09:51 UTC	59880.4109	g	19.02	0.04
2022-11-04 09:19 UTC	59887.3886	g	19.11	0.12
2022-11-06 09:57 UTC	59889.4152	g	19.08	0.10
2022-11-14 10:58 UTC	59897.4576	g	19.03	0.09
2022-11-16 10:05 UTC	59899.4204	g	19.18	0.36
2022-11-18 10:07 UTC	59901.4218	g	18.99	—
2022-11-20 09:27 UTC	59903.3940	g	19.05	—
2022-11-25 10:34 UTC	59908.4404	g	19.14	0.02
2022-11-27 10:05 UTC	59910.4208	g	19.06	—
2022-12-17 08:48 UTC	59930.3671	g	19.04	0.06
2023-01-12 06:56 UTC	59956.2894	g	18.99	0.08
2023-01-21 08:35 UTC	59965.3580	g	19.03	0.14
2023-01-24 06:10 UTC	59968.2574	g	19.02	—
2023-02-18 04:55 UTC	59993.2051	g	19.09	0.14
2023-03-14 04:34 UTC	60017.1906	g	19.03	0.02
2023-03-18 04:38 UTC	60021.1937	g	19.05	0.05
2023-03-28 04:38 UTC	60031.1936	g	19.04	—
2023-04-11 03:46 UTC	60045.1571	g	19.04	—
2023-04-17 04:38 UTC	60051.1935	g	18.98	—
2023-10-07 10:54 UTC	60224.4546	g	19.11	0.09
2023-10-15 10:51 UTC	60232.4526	g	19.05	—
2023-10-21 10:59 UTC	60238.4577	g	18.97	—
2023-10-24 11:20 UTC	60241.4722	g	19.09	—
2023-11-05 10:40 UTC	60253.4446	g	19.06	0.03
2023-11-07 12:22 UTC	60255.5159	g	19.02	—
2023-11-10 09:35 UTC	60258.3997	g	19.09	0.07
2023-11-12 11:27 UTC	60260.4776	g	18.98	—
2023-12-11 09:03 UTC	60289.3772	g	19.10	0.10
2023-12-15 12:32 UTC	60293.5225	g	19.03	—
2023-12-16 09:01 UTC	60294.3758	g	19.04	—
2023-12-18 11:06 UTC	60296.4628	g	19.03	—
2024-01-13 06:37 UTC	60322.2761	g	19.02	0.11
2024-01-15 09:07 UTC	60324.3804	g	19.00	—
2024-01-17 07:19 UTC	60326.3050	g	19.10	—
2024-02-12 06:38 UTC	60352.2766	g	19.06	—
2024-02-14 06:36 UTC	60354.2756	g	19.04	—
2024-03-09 04:35 UTC	60378.1912	g	19.04	—
2024-03-19 06:09 UTC	60388.2564	g	19.16	0.15
2024-03-21 05:09 UTC	60390.2151	g	19.16	0.21
2024-04-03 03:34 UTC	60403.1492	g	19.04	0.03
2024-04-29 04:06 UTC	60429.1711	g	19.03	0.03
2024-09-21 11:59 UTC	60574.4997	g	19.17	0.16
2024-10-10 12:24 UTC	60593.5168	g	19.07	0.03
2024-10-15 11:30 UTC	60598.4799	g	19.10	—
2024-10-20 11:30 UTC	60603.4795	g	18.97	0.09
2024-10-26 09:55 UTC	60609.4137	g	19.02	0.07
2024-11-01 10:11 UTC	60615.4248	g	19.04	0.05
2024-11-08 11:18 UTC	60622.4714	g	19.05	—
2024-11-10 11:15 UTC	60624.4692	g	19.03	—
2024-11-26 09:10 UTC	60640.3820	g	19.08	0.02
2024-11-26 09:10 UTC	60640.3820	g	19.08	0.02
2024-11-30 08:35 UTC	60644.3583	g	19.08	—
2024-12-22 09:41 UTC	60666.4041	g	19.04	—
2024-12-29 10:02 UTC	60673.4181	g	19.00	—
2024-12-31 09:28 UTC	60675.3947	g	18.98	—
2025-01-17 05:34 UTC	60692.2324	g	19.01	0.07
2025-01-19 06:00 UTC	60694.2504	g	19.04	0.06
2025-01-24 08:45 UTC	60699.3647	g	19.05	0.04
2025-02-21 05:33 UTC	60727.2317	g	19.03	—
2025-02-22 06:04 UTC	60728.2529	g	19.03	0.02
2025-02-24 06:37 UTC	60730.2760	g	19.06	—
2025-02-26 04:33 UTC	60732.1902	g	19.00	—
2025-03-05 03:34 UTC	60739.1492	g	19.07	0.08
2025-03-10 05:16 UTC	60744.2195	g	19.12	0.08
2025-03-21 03:20 UTC	60755.1393	g	19.05	0.04
2025-03-23 05:55 UTC	60757.2471	g	19.01	0.02
2025-03-25 05:38 UTC	60759.2352	g	19.03	—
2025-03-27 05:38 UTC	60761.2350	g	19.09	0.02
2025-04-05 05:42 UTC	60770.2381	g	19.38	0.17
2025-09-30 11:17 UTC	60948.4704	g	19.00	0.06
2025-10-02 11:47 UTC	60950.4910	g	19.04	0.05
2025-10-04 12:22 UTC	60952.5157	g	19.01	—
2025-10-06 12:23 UTC	60954.5162	g	19.07	0.08
2025-10-08 11:25 UTC	60956.4758	g	19.08	0.15
2025-10-10 12:27 UTC	60958.5191	g	18.99	0.09
2025-10-13 11:43 UTC	60961.4887	g	19.03	0.04
2025-10-18 12:04 UTC	60966.5031	g	19.07	—
2025-10-20 12:06 UTC	60968.5047	g	19.05	—
2025-10-26 12:06 UTC	60974.5042	g	19.06	—
2025-10-29 10:18 UTC	60977.4298	g	19.00	0.04
2025-11-02 11:32 UTC	60981.4808	g	19.15	—
2025-11-05 11:03 UTC	60984.4608	g	19.27	0.20
2025-11-06 11:03 UTC	60985.4607	g	19.07	0.11
2025-11-06 13:00 UTC	60985.5421	g	19.21	0.09
2025-11-20 09:19 UTC	60999.3885	g	19.11	0.04
2025-11-25 09:24 UTC	61004.3923	g	19.13	—
2025-11-27 10:59 UTC	61006.4579	g	19.06	0.01
2025-11-30 11:05 UTC	61009.4624	g	19.05	—
2025-12-01 10:11 UTC	61010.4250	g	19.11	0.05
2025-12-12 07:54 UTC	61021.3298	g	19.05	—
2025-12-15 10:08 UTC	61024.4222	g	18.99	—
2025-12-17 10:06 UTC	61026.4210	g	19.02	0.01
2025-12-20 06:55 UTC	61029.2887	g	19.05	—
2025-12-22 08:03 UTC	61031.3359	g	19.00	—
2025-12-29 09:10 UTC	61038.3820	g	19.02	—
2026-01-10 08:02 UTC	61050.3348	g	19.09	0.10
2026-01-12 07:43 UTC	61052.3216	g	19.22	0.12
2026-01-14 06:33 UTC	61054.2730	g	18.98	—
2026-01-16 07:49 UTC	61056.3261	g	19.10	—
2026-01-18 06:15 UTC	61058.2609	g	18.98	0.06
2026-01-20 08:35 UTC	61060.3578	g	19.02	—
2026-01-28 07:01 UTC	61068.2928	g	19.14	0.06
2026-02-04 04:09 UTC	61075.1734	g	19.09	0.11
2026-02-08 05:37 UTC	61079.2341	g	19.08	0.04
2026-02-08 05:38 UTC	61079.2351	g	19.03	—
2026-02-09 10:27 UTC	61080.4359	g	18.97	0.08
2026-02-15 07:20 UTC	61086.3061	g	19.02	0.14
2026-02-16 06:10 UTC	61087.2574	g	19.10	0.07
2026-02-22 06:30 UTC	61093.2711	g	19.07	0.02
2026-02-23 04:12 UTC	61094.1754	g	19.09	0.03
2026-02-26 06:39 UTC	61097.2775	g	19.08	0.07
2026-02-27 05:10 UTC	61098.2159	g	19.21	0.12
2026-03-02 06:07 UTC	61101.2553	g	19.26	0.15
2026-03-08 04:06 UTC	61107.1709	g	19.08	—
2026-03-13 06:52 UTC	61112.2864	g	19.06	0.05
2026-03-14 04:34 UTC	61113.1906	g	19.07	—
2026-03-16 03:34 UTC	61115.1492	g	19.03	0.05
2026-03-18 03:18 UTC	61117.1379	g	19.03	—
2026-03-19 03:34 UTC	61118.1492	g	19.06	—
2026-03-20 03:37 UTC	61119.1513	g	19.03	0.03
2026-03-22 03:20 UTC	61121.1393	g	19.08	0.07
2026-03-24 03:22 UTC	61123.1404	g	19.04	—
2026-03-25 04:34 UTC	61124.1909	g	19.07	0.03
2026-03-26 03:26 UTC	61125.1437	g	19.00	0.02
2026-03-27 04:34 UTC	61126.1907	g	19.01	0.03
2026-03-29 04:33 UTC	61128.1902	g	19.10	0.11
2026-04-02 03:41 UTC	61132.1537	g	19.00	0.09
2026-04-04 04:30 UTC	61134.1879	g	19.00	0.07
2026-04-05 04:35 UTC	61135.1913	g	19.12	—
2026-04-07 05:06 UTC	61137.2125	g	19.02	0.06
2026-04-10 05:14 UTC	61140.2184	g	19.05	—
2026-10-18 12:28 UTC	61331.5200	g	19.05	—
2026-10-19 10:43 UTC	61332.4471	g	18.98	—
2026-10-26 12:32 UTC	61339.5227	g	19.12	0.15
2026-11-03 11:34 UTC	61347.4822	g	19.10	0.01
2026-11-04 11:06 UTC	61348.4628	g	19.10	—

Classification

lc_classifier · lc_classifier_1.1.13

Active galactic nucleus19%
Cataclysmic variable17%
Quasar16%

stamp_classifier · stamp_classifier_1.0.4

Artifact41%
Supernova35%
Active galactic nucleus14%

LC_classifier_ATAT_forced_phot(beta) · 1.0.0

Type Ia supernova79%
Active galactic nucleus20%
Type IIn supernova<1%

More classifiers and versions (22)

lc_classifier_BHRF_forced_phot · 2.1.0

Type II supernova21%
SESN13%
Type IIn supernova13%

lc_classifier_BHRF_forced_phot_periodic · 2.1.0

RSCVn25%
Periodic variable19%
EA13%

lc_classifier_BHRF_forced_phot_stochastic · 2.1.0

Cataclysmic variable32%
Young stellar object21%
Blazar16%

lc_classifier_BHRF_forced_phot_top · 2.1.0

Transient63%
Irregular variable25%
Periodic variable12%

lc_classifier_BHRF_forced_phot_transient · 2.1.0

Type II supernova33%
SESN21%
Type IIn supernova20%

LC_classifier_BHRF_forced_phot(beta) · 1.1.5

Type Ia supernova23%
Type II supernova21%
Type Ib/c supernova20%

lc_classifier_periodic · hierarchical_rf_1.1.0

Delta Scuti star29%
RR Lyrae star22%
Eclipsing binary18%

lc_classifier_stochastic · hierarchical_rf_1.1.0

Cataclysmic variable31%
Active galactic nucleus24%
Quasar19%

lc_classifier_top · hierarchical_rf_1.1.0

Irregular variable75%
Periodic variable17%
Transient8%

lc_classifier_transient · hierarchical_rf_1.1.0

Type Ia supernova30%
Superluminous supernova27%
Type II supernova23%

stamp_classifier_2025_beta · 2.1.1_beta

Active galactic nucleus84%
Supernova13%
Artifact2%

lc_classifier · hierarchical_rf_1.1.0

Cataclysmic variable23%
Active galactic nucleus18%
Quasar14%

lc_classifier

Cataclysmic variable23%

LC_classifier_ATAT_forced_phot(beta) · 0.3.6

Type Ia supernova100%
Type II supernova<1%
Active galactic nucleus<1%

LC_classifier_ATAT_forced_phot(beta) · 0.3.4

Type Ia supernova99%
Type II supernova<1%
Type IIn supernova<1%

LC_classifier_ATAT_forced_phot(beta) · 0.3.1

Type Ia supernova48%
Type II supernova33%
Type Ib/c supernova19%

LC_classifier_ATAT_forced_phot(beta) · 0.2.0

Type Ia supernova85%
Type Ib/c supernova14%
Type II supernova<1%

LC_classifier_BHRF_forced_phot(beta) · 1.1.4

Type Ib/c supernova22%
Type II supernova21%
Type Ia supernova21%

LC_classifier_BHRF_forced_phot(beta) · 1.1.1

Type Ia supernova24%
Type Ib/c supernova23%
Type II supernova21%

LC_classifier_BHRF_forced_phot(beta) · 1.0.7

Cataclysmic variable14%
Type IIn supernova7%
Tidal disruption event6%

stamp_classifier · stamp_classifier_1.0.0

Supernova85%
Variable star5%
Active galactic nucleus5%

stamp_classifier

Supernova85%

Where in the sky

Whole sky, right ascension (hours) across, declination (degrees) up. The dashed curve is the plane of the Milky Way.