BHTOM Targets for 19 July, 2026
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wyrz...@gmail.com
Jul 19, 2026, 7:14:23 PM (8 days ago) Jul 19
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Top 5 data uploaders!
Clear skies!
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Greetings from the BHTOM Automated Newsletter!
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As of 2026-07-19 23:13:00.001686+00:00, these are the new targets added in the last week for observing (importance>=1), sorted by magnitude:
| name | ra | dec | mag_last | sun_separation | classification | description |
|---|---|---|---|---|---|---|
| Gaia21eij | 105.811910 | 20.359320 | 16.2 | 12.0 | Unknown | 4 mag blue outburst on a Gaia source, previous outbursts in lightcurve, candidate CV |
| Gaia19dmw | 241.864180 | -5.091190 | 16.5 | 123.0 | CV | known CV NSV 7460 brightens by ~2 mags |
| Gaia22dzq | 314.887210 | -9.271150 | 16.5 | 160.0 | CV | Outburst in known CV |
| Gaia18cpy | 242.518090 | -2.818910 | 17.2 | 123.0 | CV | confirmed CV aka ASASSN-18th |
| Gaia21asx | 264.888730 | -2.140490 | 17.6 | 143.0 | CV | 3 mag outburst in known CV ASASSN-15kb |
| Gaia17bfe | 282.874600 | -28.264410 | 17.8 | 164.0 | Unknown | blue transient on faint blue DSS source, candidate CV |
| Gaia21fik | 197.403560 | -70.839680 | 18.0 | 106.0 | Unknown | bright blue hostless transient |
| Gaia21elp | 310.553480 | 36.961180 | 18.2 | 121.0 | Unknown | 4.5 mag outburst in candidate CV |
| Gaia21cym | 268.937590 | -70.776190 | 18.3 | 127.0 | CV | known CV ASASSN-14fh in outburst |
| Gaia17cjy | 241.031210 | -2.288610 | 18.3 | 121.0 | Unknown | blue hostless transient |
| Gaia19aek | 331.331190 | -60.206760 | 18.4 | 134.0 | CV | 3.5 mag outburst on CV ASASSN-14dj |
| TDE2026pwc | 197.835704 | 79.326672 | 18.8 | 68.0 | TDE | TDE-featureless |
| Gaia21bbx | 291.608180 | -25.220150 | 19.1 | 173.0 | CV | outburst in known CV |
| Gaia18cau | 285.338810 | -62.467900 | 19.2 | 138.0 | CV | 4 mag outburst of known dwarf nova ASASSN-15kt |
| Gaia19awq | 245.047310 | 10.709090 | 19.2 | 119.0 | Unknown | blue transient on g 22.6 source, coincident with candidate CV CSS 170201:162011+104234 |
| Gaia19arr | 267.502040 | -37.120330 | 19.5 | 149.0 | CV | known CV brightens by 3 mag |
| Gaia20ejx | 241.079270 | 16.263430 | 19.8 | 113.0 | Unknown | outburst in candidate CV |
| Gaia20evy | 244.865950 | 42.510980 | 20.1 | 100.0 | CV | known CV ASASSN-14fl in 3 mag outburst |
| Gaia21eel | 300.987990 | -18.536420 | 20.2 | 176.0 | CV | outburst of confirmed CV ASASSN-14bo |
| Gaia19eoi | 301.031830 | 12.438430 | 20.3 | 147.0 | Unknown | Gaia source brightens by ~4 mags |
| Gaia18dsq | 327.956930 | -3.492420 | 20.5 | 146.0 | CV | Large amplitude outburst of confirmed CV ASASSN-18aao |
| Gaia18cwo | 246.019600 | -5.316180 | 20.6 | 127.0 | Unknown | apparently hostless blue transient |
| Gaia24ahe | 244.721510 | 7.074160 | 20.7 | 121.0 | Unknown | Outburst in candidate CV |
| Gaia23axy | 244.711460 | -5.419040 | 20.8 | 126.0 | Unknown | 5 mag outburst in Gaia source, candidate CV |
| Gaia20bgo | 281.606530 | -53.325630 | 21.0 | 145.0 | Unknown | apparently hostless transient, candidate DN |
| Gaia24aij | 241.575880 | -4.222400 | 21.7 | 123.0 | Unknown | Transient on faint blue PanSTARRS source |
In addition, here are some older targets that are currently visible and requested for observations. These targets have an importance>=4, a sun separation>70, and last magnitude<18, sorted by magnitude.
| name | ra | dec | mag_last | sun_separation | classification | description |
|---|---|---|---|---|---|---|
| 2S0114+65 | 19.511240 | 65.291619 | 10.2 | 75.0 | XRB | Supergiant X-ray binary |
| RXJ0146.9+6121 | 26.750885 | 61.356573 | 10.5 | 72.0 | XRB | Be X-ray binary |
| GAIA DR3 2207162600835525760 | 343.140631 | 62.313246 | 10.7 | 89.0 | YSO | High scientific interest embedded field. Extreme RUWE 33 Optically unresolved Please dont saturate |
| HD216629 | 343.315017 | 62.145834 | 10.9 | 90.0 | YSO | Herbig Ae need first analysisch for survey |
| TYC4282-930-1 | 343.409336 | 62.615911 | 11.0 | 89.0 | YSO | LS III +62 22 -- Young Stellar Object |
| TCrB | 239.875676 | 25.920170 | 11.3 | 107.0 | Nova | recurent nova predicted to explode 2024/2025 |
| AT 2026rdg | 288.630693 | 12.064890 | 11.4 | 146.0 | Nova | Astro-COLIBRI target, classical nova |
| Gaia DR3 2207274751021560576 | 343.276248 | 62.609052 | 11.6 | 89.0 | YSO | High scientific interest in an embedded field. Extreme RUWE 33. Please dont saturate the star |
| UCAC4 489-096064 | 289.315500 | 7.796900 | 12.7 | 150.0 | EB | S1 Aql from Squadra group, preliminary periods: A: 2.36 days, B: 3.72 days |
| Gaia18dry | 215.626540 | 32.386230 | 12.9 | 85.0 | BL Lac | Possible changing look AGN (OQ 334), gamma flaring 4FGL J1422.3+3223 |
| UCAC-4 710-082844 | 320.370041 | 51.815437 | 13.1 | 105.0 | EB | S4 Cyg from Squadra group, 2,1953-d period, maximum amplitude ~ 0,35 mag (binary A), 1,6280-d period, maximum amplitude ~ 0,08 mag (binary B), observe densely |
| 4U0115+63 | 19.633210 | 63.742520 | 13.1 | 75.0 | XRB | Be X-ray binary |
| BL_Lac | 330.680381 | 42.277772 | 13.4 | 110.0 | BL Lac | famous variable blazar |
| CM_Del | 306.237210 | 17.298420 | 13.7 | 141.0 | CV | Z Cam type dwarf nova (IW And sub-class) |
| GROJ2058+42 | 314.698071 | 41.776995 | 13.9 | 115.0 | XRB | Be X-ray binary |
| Gaia23bab | 286.111170 | 4.399270 | 14.8 | 152.0 | Unknown | repeated outburst in a candidate YSO |
| SN 2026fov | 337.113504 | 30.298461 | 15.3 | 117.0 | SN | Closeby Type II supernova at 11.82 Mpc |
| ZTF18aarippg | 217.566838 | 23.062372 | 15.4 | 90.0 | QSO | Tick-Tok possibly merging Super Massive Black Hole binary |
| AT2025sqe | 288.715125 | 8.001778 | 15.4 | 150.0 | Unknown | slow galactic very red transient |
| SN 2026kid | 228.988442 | 56.308914 | 16.1 | 84.0 | SN | Closeby Type II supernova at 14 Mpc. Strong CSM interaction |
| SN 2026obc | 16.955937 | 41.995383 | 16.4 | 84.0 | SN | classified as SN Icn |
| TCP J00560713+4301406 | 14.029500 | 43.028810 | 17.0 | 86.0 | CV | Dwarf nova candidate, according to CBAT; discovered at 12.2 mag on 2026 06 01.4 UTC |
| AT2026lck | 280.993979 | 1.880128 | 17.3 | 152.0 | Nova | Weird recurrent nova in the Milky Way |
| name | ra | dec | mag_last | sun_separation | classification | description |
|---|---|---|---|---|---|---|
| GaiaDR3_4263591911398361472 | 289.926500 | -0.049900 | 9.6 | 158.0 | Variable star-other | This target is part of a paper about I am writing a revision for, and I would like to confirm if it is a binary system or not. It has a period of ~1.435 days (if a binary, ~2x1.435 days) |
| TYC 9231-1222-1 | 181.862074 | -70.489348 | 11.3 | 101.0 | EB | S2 Mus from Squadra group. 2.13397-d period well visible with 0.12 mag (binary A), 2.4962-d period with 0.02-0.05 mag (binary B) |
| V0384 Cen | 174.822039 | -62.174743 | 11.4 | 94.0 | EB | S2 Cen from Squadra group, 12.6354-d period, large amplitudes ~0.3-0.4 mag, (binary A), 3.6402566-d period, low amplitudes ~ 0.03 mag (binary B) |
| AT 2026stb | 277.815075 | -5.575534 | 11.4 | 155.0 | Nova | Galactic Nova on the rise, Astro-COLIBRI target |
| ASASSN-26bp | 225.854950 | -63.189410 | 12.3 | 117.0 | Variable star-other | Star Undergoing Deep Dimming Events |
| TYC 8288-317-1 | 222.829803 | -49.723471 | 12.6 | 115.0 | EB | S1 Lup from Squadra group, 8.2186-d period, amplitude ~0.02 mag (binary A), 11.167-d period, amplitude ~0.09 mag (binary B) |
| Gaia19dbf | 178.699417 | -64.491850 | 14.0 | 97.0 | Unknown | Possibly a YSO |
| V4141 Sgr | 267.599257 | -19.895328 | 14.1 | 151.0 | Symbiotic star | symbiotic star |
| Nova Centauri 2025 | 219.340667 | -58.794667 | 14.4 | 114.0 | Nova | potential nova from ASASSN, V1935 Cen |
| Mkn590 | 33.639835 | -0.766717 | 14.6 | 85.0 | QSO | Flaring quasar |
| mrk1018 | 31.566619 | -0.291455 | 14.9 | 87.0 | AGN | changinglook AGN |
| TIC 99629496 | 291.689208 | -10.716439 | 14.9 | 168.0 | EB | S2 Aql from Squadra group, 3.2608-d period, amplitude 0.25 mag, (binary A), 4.6584-d period, amplitude 0.10 mag, (binary B) |
| AT 2025nlr | 227.013640 | -40.141550 | 15.2 | 117.0 | Nova | Astro-COLIBRI target |
| ASASSN-26af | 82.501958 | -66.724833 | 15.3 | 92.0 | Unknown | Undergoing Deep Dimming Events in the LMC |
| Nova Sagittarii 2025 no.4 | 270.969917 | -31.456667 | 15.8 | 153.0 | Nova | Nova Sgr 2025 No. 4 is TCP J18035290-3127298 is TCP J18035278-3127240 |
| HE0413_4031 | 63.810269 | -40.394754 | 15.9 | 79.0 | QSO | Long term variable quasar for monitoring |
| SN 2026mho | 301.909587 | -21.118444 | 16.1 | 177.0 | SN | Closest undisputed Type IIn SN in the last decade. |
| ZTF26aazvwlo | 276.729804 | -17.541139 | 16.1 | 159.0 | Unknown | Candidate Microlensing Event from ZTF |
| ZTF20abendxc | 281.224708 | -8.538111 | 16.1 | 159.0 | YSO | Possibly eruptive YSO |
| SN 2026pub | 206.406162 | -5.993286 | 16.2 | 90.0 | SN | Nearby SN II with redshift of 0.004837. |
| ASASSN-25cd | 277.969917 | -28.807539 | 16.4 | 160.0 | Unknown | A Deep, Ongoing, Dipping Event |
| ZTF26aavkosv | 265.577306 | -21.392464 | 17.2 | 150.0 | Microlensing Event | Microlensing candidate from ZTF |
| Gaia24amo | 249.148921 | -53.749919 | 17.3 | 131.0 | Microlensing Event | candidate microlensing event, with the second peak |
| Gaia23cnm | 285.322920 | -18.717130 | 17.5 | 168.0 | Unknown | slow and long rise, possible microlensing or YSO |
Last week's total of images processed: 4989 (4873 with success).
Last week's targets observed:
| camera | target_names |
|---|---|
| AZT-8_C4-16000 | Gaia22aro, Gaia18acq, Gaia18dom, Gaia17cuh, Gaia24amv, Gaia19aif, Gaia16amd, Gaia20bus, 1H1936+541, Gaia18bad, Gaia17bop, Gaia19fle, Gaia21esu |
| Adonis_G2-1600 | TabbysStar, Gaia24dfv, TCP J21220926+4926242, AT 2026rdg, AT2025acft, AM_Her, TCrB, Gaia24azc |
| Adyu60_Andor-934 | Gaia19ati, AT 2026rdg, TIC 99629496, UCAC-4 710-082844, SN 2026sqf |
| EEye_QHY268M | Q0957+561_A, ZTF26aavkosv |
| Flarestar-MPC171_QHY268M | AT2026lck, AT2025sqe, RUWE 18 star, 1H2202+501, AT 2026rdg, Gaia21fji, SN 2026sqf, TCrB |
| Kryoneri-1.2_Andor-Zyla | 2S0114+65, 4U0115+63, RXJ0146.9+6121, LS I +61 302 |
| LCOGT-CTIO-40cm_QHY600M | Gaia16adj, HD 98800, ZTF26aazvwlo, ZTF26aavkosv |
| LCOGT-HO-2m_Muscat | QZ Vul, KV UMa, MAXI J1910-057, V1037Cas, Aql X-1, 4U 1957+11, V406 Vul, V4641 Sgr, MAXI J1820+070, V404_Cyg |
| LCOGT-HO-40cm_QHY600M | HD 98800, ZTF26aazvwlo, Gaia16amd, 1H1936+541, Gaia18dry, Gaia18bad |
| LCOGT-MCD-1m_4K | ZTF26aazvwlo, Gaia18dry, ZTF26aavkosv |
| LCOGT-MCD-40cm_QHY600M | 1H1936+541, ZTF26aazvwlo, Gaia18dry, ZTF26aavkosv |
| LCOGT-SAAO-1m_4K | ZTF26aazvwlo, ZTF26aavkosv, LSST-AP-DO-313690716557017106, OGLE-2026-BLG-0128, Gaia24amo |
| LCOGT-SAAO-40cm_QHY600M | HD 98800, ZTF26aazvwlo, AT 2026ofr, Gaia19axh, ZTF26aavkosv, Gaia16adj |
| LCOGT-SS-1m_4K | LSST-AP-DO-313690716557017106, OGLE-2026-BLG-0128, ZTF26aazvwlo, ZTF26aavkosv |
| LCOGT-SS-2m_Muscat | MAXI J0556-332, MAXI J1807+132, GX 339-4, XTE J1728-295, MAXI J1803-298 |
| LCOGT-SS-40cm_QHY600M | HD 98800, ZTF26aazvwlo, AT 2026ofr, ZTF26aavkosv, Gaia19ati, Gaia16amd |
| LCOGT-Teide-40cm_QHY600M | ZTF26aazvwlo, ZTF26aavkosv, Gaia24amv, Gaia16amd, 1H1936+541, Gaia18dry |
| Moravian_C3-61000_PRO | Gaia24bux, SN 2026sqf, Gaia24cjg, Gaia23bab |
| OAUJ-Tymce-36cm_ASI-6200MM | SN 2026kid, AT2025abao |
| Ostrowik-60-cm_SOFIA_E2V | TCP J00560713+4301406, Gaia18dry, SN 2026kid, CM_Del, SN 2026sqf, BL_Lac |
| PROMPT2_FLI | ZTF26aavkosv |
| PROMPT5_Apogee | AT2026ayt |
| Planetarium_Slaskie_Kepler4040 | AT 2026stb, SN 2026sqf, AT 2026rdg, SN 2026pub |
| ROAD40_FLI-KAF-16803 | VW Hyi |
| ROAD40_QHY600M | Gaia16adj, Gaia19ati |
| SOAB_ZWO-ASI2600MM | AT 2026stb, SN 2026dix, Gaia18dry, SN 2026fvx, SN 2026sqf, TCrB |
| SUTO-Otivar_ASI1600MM | V2894 Cyg, ASASSN-V J222721.05+564425.3, TCrB |
| Salerno_Observatory_FLI | TCP J21220926+4926242, AT2025sqe, Gaia23dqt, AT 2026rdg, Gaia DR3 2207274751021560576, Gaia18dry, GAIA DR3 2207162600835525760, GROJ2058+42, SN 2026kid, RXJ0146.9+6121, UCAC-4 710-082844, SN 2026sqf, SN 2026fov, TCrB, BL_Lac |
| Seestar-S30 | Gaia18dry, GROJ2058+42, SN 2026sqf, TCrB, BL_Lac |
| Seestar-S50 | IGRJ06074+2205, AT 2026stb, AT2026lck, 8C0716_714, ZTF26aazvwlo, Gaia21esb, TCP J00560713+4301406, AT 2026rdg, Gaia18dry, SN 2026kid, Z_Cam, SN 2026fvx, CM_Del, SN 2026sqf, SN 2026fov, TCrB, BL_Lac |
| TJO_MEIA3 | SN2024afyu, TCrB, AT2025abao |
Last week's fits uploads score (sorted by count)
| observatory-user | count |
|---|---|
| Franz-Josef Hambsch (ROAD40_FLI-KAF-16803) | 1327 |
| Zbigniew Grabowski (Seestar-S50) | 564 |
| Lukasz Wyrzykowski (Ostrowik-60-cm_SOFIA_E2V) | 375 |
| Waldemar Ogloza (Adyu60_Andor-934) | 340 |
| Valerio Bozza (Salerno_Observatory_FLI) | 332 |
| Lukasz Wyrzykowski (LCOGT-SAAO-40cm_QHY600M) | 156 |
| Stephen M. Brincat (Flarestar-MPC171_QHY268M) | 152 |
| Rachel Street (LCOGT-SAAO-1m_4K) | 152 |
| Rachel Street (LCOGT-SS-1m_4K) | 102 |
| Lukasz Wyrzykowski (LCOGT-SS-40cm_QHY600M) | 95 |
| Michal Siwak (Moravian_C3-61000_PRO) | 84 |
| Waldemar Ogloza (Planetarium_Slaskie_Kepler4040) | 82 |
| Mauritz Wicker (LCOGT-SAAO-40cm_QHY600M) | 79 |
| Konstantina Vrontaki (Kryoneri-1.2_Andor-Zyla) | 79 |
| Staszek Zola (OAUJ-Tymce-36cm_ASI-6200MM) | 70 |
| Patryk Kropacz (Seestar-S50) | 62 |
| Lukasz Wyrzykowski (LCOGT-CTIO-40cm_QHY600M) | 57 |
| Weronika Skrobacz (Seestar-S50) | 57 |
| Jacek Drazkowski (Seestar-S50) | 54 |
| Mauritz Wicker (LCOGT-SS-40cm_QHY600M) | 51 |
| Sebastian Kurowski (SOAB_ZWO-ASI2600MM) | 49 |
| Franky Dubois (Adonis_G2-1600) | 47 |
| Mauritz Wicker (LCOGT-CTIO-40cm_QHY600M) | 42 |
| Fraser Lewis (LCOGT-HO-2m_Muscat) | 40 |
| Mauritz Wicker (LCOGT-HO-40cm_QHY600M) | 40 |
| Astro Koluszki (Seestar-S30) | 40 |
| Mauritz Wicker (LCOGT-Teide-40cm_QHY600M) | 40 |
| Josep Manel Carrasco (TJO_MEIA3) | 39 |
| Mauritz Wicker (LCOGT-MCD-40cm_QHY600M) | 34 |
| Jacek Drazkowski (Seestar-S30) | 34 |
| Lukasz Wyrzykowski (LCOGT-Teide-40cm_QHY600M) | 32 |
| Adam Popowicz (SUTO-Otivar_ASI1600MM) | 25 |
| Dariia Rusanova (AZT-8_C4-16000) | 25 |
| Anna Olchowy (Seestar-S30) | 24 |
| Lukasz Wyrzykowski (LCOGT-HO-40cm_QHY600M) | 23 |
| Mauritz Wicker (LCOGT-SAAO-1m_4K) | 21 |
| Andrii Simon (AZT-8_C4-16000) | 20 |
| Rachel Street (LCOGT-MCD-1m_4K) | 20 |
| Fraser Lewis (LCOGT-SS-2m_Muscat) | 20 |
| Jędrzej Kwinta (Seestar-S50) | 14 |
| Sjoerd Dufoer (EEye_QHY268M) | 12 |
| Lukasz Wyrzykowski (LCOGT-MCD-40cm_QHY600M) | 11 |
| Mauritz Wicker (LCOGT-MCD-1m_4K) | 9 |
| Mauritz Wicker (LCOGT-SS-1m_4K) | 9 |
| Lukasz Wyrzykowski (LCOGT-SS-1m_4K) | 8 |
| Staszek Zola (PROMPT2_FLI) | 6 |
| Staszek Zola (PROMPT5_Apogee) | 6 |
| Andrii Simon (ROAD40_QHY600M) | 6 |
| Andrii Simon (LCOGT-HO-40cm_QHY600M) | 4 |
| Joysankar Majumdar (LCOGT-MCD-1m_4K) | 4 |
| Patryk Piekarz (Seestar-S50) | 2 |
| Kajetan Siennicki (Ostrowik-60-cm_SOFIA_E2V) | 2 |
| Andrii Simon (LCOGT-Teide-40cm_QHY600M) | 2 |
| Lukasz Wyrzykowski (LCOGT-SAAO-1m_4K) | 2 |
| Astro Koluszki (Seestar-S50) | 2 |
| Krzysztof Słowik (Seestar-S30) | 2 |
| Andrii Simon (LCOGT-MCD-40cm_QHY600M) | 2 |
Top 5 data uploaders!
| name | count |
|---|---|
| Franz-Josef Hambsch | 1327 |
| Lukasz Wyrzykowski | 759 |
| Zbigniew Grabowski | 564 |
| Waldemar Ogloza | 422 |
| Valerio Bozza | 332 |
Clear skies!
Your BHTOM Team
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