BHTOM Targets for 13 July, 2026
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wyrz...@gmail.com
Jul 13, 2026, 6:11:01 AMJul 13
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As of 2026-07-13 10:08:09.437476+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 |
|---|---|---|---|---|---|---|
| SN 2026sqf | 159.699837 | 53.509472 | 12.6 | 48.0 | SN | Nearby Type II SN |
| 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 |
| AT 2026stb | 277.815075 | -5.575534 | 14.7 | 159.0 | Nova | Galactic Nova on the rise, Astro-COLIBRI target |
| ASASSN-19hz | 254.230167 | -31.877389 | 14.9 | 145.0 | CV | Candidate ER UMa |
| Gaia19ati | 287.744960 | -26.765390 | 15.7 | 174.0 | Unknown | red source brightens by 4 mags, previous events seen, 5 arcsec from ASASSN-15pa, candidate CV |
| Gaia19axh | 280.585480 | -31.480720 | 16.0 | 166.0 | Unknown | faint Gaia source brightens by almost 5 mag, candidate CV |
| Gaia20aws | 269.206660 | -41.811820 | 17.2 | 152.0 | Unknown | Gaia source brightens by almost 4 mags, candidate CV |
| Gaia19bgo | 250.555160 | -23.220490 | 17.5 | 142.0 | CV | CV ASASSN-14gb brightens by 2 mags |
| Gaia17bxy | 275.375990 | -53.805300 | 17.5 | 146.0 | Unknown | Gaia source brightens by ~3 mags, previous outburst in lightcurve, blue, candidate CV |
| Gaia20ffw | 268.724750 | -53.060200 | 17.5 | 144.0 | CV | outburst in known CV ASASSN-18jq |
| Gaia20chx | 232.019890 | -67.622130 | 17.6 | 121.0 | CV | ~4 mag outburst in Gaia source, candidate Dwarf nova |
| Gaia19aaf | 227.828290 | -69.233410 | 17.7 | 119.0 | Unknown | Gaia source brightens by ~3 mags, previous outburst in lightcurve, candidate CV |
| ZTF18abqexhh | 282.397167 | -10.041528 | 17.8 | 165.0 | CV | Candidate ER UMa |
| Gaia19cjd | 195.187917 | -33.235333 | 18.2 | 96.0 | CV | Candidate CV |
| Gaia20awn | 271.801340 | -42.874340 | 18.2 | 153.0 | Unknown | blue transient near the galactic plane, candidate CV |
| LSST-AP-DO-313690716557017106 | 7.539789 | -43.896082 | 18.9 | 115.0 | Unknown | Long lived nuclear transient, rising consistently |
| Gaia18czc | 297.798230 | -26.196230 | 19.0 | 173.0 | CV | Gaia source brightens by almost 4 mags, coincident with dwarf nova ASASSN-14jn |
| GRB260708A | 225.654417 | -43.885333 | 19.0 | 122.0 | Unknown | A possible optical counterpart of the GRB |
| Gaia20awo | 290.902780 | -51.745570 | 19.3 | 150.0 | CV | Gaia source brightens by ~4 mags, known CV |
| Gaia19egf | 245.536790 | -67.585290 | 19.9 | 126.0 | Unknown | 4.4 mag outburst of Gaia source, candidate CV |
| Gaia19crg | 261.834390 | -82.067270 | 20.1 | 119.0 | CV | DSS source brightens by 4 mag, candidate CV |
| Gaia20aup | 282.136150 | -62.889420 | 20.4 | 138.0 | Unknown | candidate CV brightens by ~2 mags, previous outburst in lightcurve |
| Gaia19aal | 239.107760 | -71.293270 | 20.7 | 122.0 | Unknown | Gaia source brightens by ~3 mags, previous outbursts in lightcurve. Candidate CV |
| Gaia20awp | 276.902990 | -45.681110 | 20.7 | 153.0 | Unknown | 3.5 mag outburst of previously identified CV candidate ASASSN-18pk |
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 |
|---|---|---|---|---|---|---|
| TCrB | 239.875676 | 25.920170 | 9.1 | 110.0 | Nova | recurent nova predicted to explode 2024/2025 |
| GAIA DR3 2207162600835525760 | 343.140631 | 62.313246 | 9.2 | 87.0 | YSO | High scientific interest embedded field. Extreme RUWE 33 Optically unresolved Please dont saturate |
| AT 2026rdg | 288.630693 | 12.064890 | 10.8 | 146.0 | Nova | Astro-COLIBRI target, classical nova |
| TYC4282-930-1 | 343.409336 | 62.615911 | 11.0 | 86.0 | YSO | LS III +62 22 -- Young Stellar Object |
| HD216629 | 343.315017 | 62.145834 | 11.0 | 87.0 | YSO | Herbig Ae need first analysisch for survey |
| 2S0114+65 | 19.511240 | 65.291619 | 11.0 | 71.0 | XRB | Supergiant X-ray binary |
| Gaia DR3 2207274751021560576 | 343.276248 | 62.609052 | 11.7 | 86.0 | YSO | High scientific interest in an embedded field. Extreme RUWE 33. Please dont saturate the star |
| Gaia18dry | 215.626540 | 32.386230 | 12.9 | 89.0 | BL Lac | Possible changing look AGN (OQ 334), gamma flaring 4FGL J1422.3+3223 |
| UCAC-4 710-082844 | 320.370041 | 51.815437 | 13.3 | 102.0 | 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 |
| BL_Lac | 330.680381 | 42.277772 | 13.7 | 107.0 | BL Lac | famous variable blazar |
| GROJ2058+42 | 314.698071 | 41.776995 | 14.0 | 113.0 | XRB | Be X-ray binary |
| 4U0115+63 | 19.633210 | 63.742520 | 14.1 | 72.0 | XRB | Be X-ray binary |
| CM_Del | 306.237210 | 17.298420 | 14.2 | 138.0 | CV | Z Cam type dwarf nova (IW And sub-class) |
| AT2025sqe | 288.715125 | 8.001778 | 15.4 | 150.0 | Unknown | slow galactic very red transient |
| TDE2025aeze | 11.493892 | 34.099292 | 15.4 | 86.0 | TDE | TDE candidate |
| ZTF18aarippg | 217.566838 | 23.062372 | 15.4 | 95.0 | QSO | Tick-Tok possibly merging Super Massive Black Hole binary |
| SN 2026kid | 228.988442 | 56.308914 | 15.4 | 86.0 | SN | Closeby Type II supernova at 14 Mpc. Strong CSM interaction |
| SN 2026fov | 337.113504 | 30.298461 | 15.8 | 112.0 | SN | Closeby Type II supernova at 11.82 Mpc |
| AT2026lck | 280.993979 | 1.880128 | 16.2 | 154.0 | Nova | Weird recurrent nova in the Milky Way |
| SN 2026obc | 16.955937 | 41.995383 | 16.5 | 79.0 | SN | classified as SN Icn |
| name | ra | dec | mag_last | sun_separation | classification | description |
|---|---|---|---|---|---|---|
| GaiaDR3_4263591911398361472 | 289.926500 | -0.049900 | 8.8 | 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) |
| HD 98800 | 170.521620 | -24.777768 | 9.4 | 73.0 | YSO | Pre-main sequence quadruple system (AaAb + BaBb) with circumbinary (BaBb) disk to eclipse AaAb |
| TYC 9231-1222-1 | 181.862074 | -70.489348 | 11.2 | 104.0 | 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 | 11.3 | 98.0 | 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) |
| TYC 8288-317-1 | 222.829803 | -49.723471 | 12.5 | 120.0 | 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) |
| ASASSN-26bp | 225.854950 | -63.189410 | 12.6 | 120.0 | Variable star-other | Star Undergoing Deep Dimming Events |
| V4141 Sgr | 267.599257 | -19.895328 | 13.1 | 157.0 | Symbiotic star | symbiotic star |
| Mkn590 | 33.639835 | -0.766717 | 13.9 | 80.0 | QSO | Flaring quasar |
| Gaia19dbf | 178.699417 | -64.491850 | 14.1 | 100.0 | Unknown | Possibly a YSO |
| AT 2025nlr | 227.013640 | -40.141550 | 14.2 | 123.0 | Nova | Astro-COLIBRI target |
| Nova Centauri 2025 | 219.340667 | -58.794667 | 14.2 | 117.0 | Nova | potential nova from ASASSN, V1935 Cen |
| mrk1018 | 31.566619 | -0.291455 | 14.6 | 81.0 | AGN | changinglook AGN |
| AT2026noc | 176.137979 | -68.809150 | 14.8 | 102.0 | Nova | ASASSN-26no Nova |
| TIC 99629496 | 291.689208 | -10.716439 | 14.9 | 169.0 | 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) |
| ASASSN-26af | 82.501958 | -66.724833 | 15.2 | 91.0 | Unknown | Undergoing Deep Dimming Events in the LMC |
| ZTF26aazvwlo | 276.729804 | -17.541139 | 15.2 | 165.0 | Unknown | Candidate Microlensing Event from ZTF |
| Nova Sagittarii 2025 no.4 | 270.969917 | -31.456667 | 15.4 | 159.0 | Nova | Nova Sgr 2025 No. 4 is TCP J18035290-3127298 is TCP J18035278-3127240 |
| HE0413_4031 | 63.810269 | -40.394754 | 15.8 | 77.0 | QSO | Long term variable quasar for monitoring |
| SN 2026pub | 206.406162 | -5.993286 | 15.9 | 96.0 | SN | Nearby SN II with redshift of 0.004837. |
| SN 2026mho | 301.909587 | -21.118444 | 15.9 | 171.0 | SN | Closest undisputed Type IIn SN in the last decade. |
| ZTF26aavkosv | 265.577306 | -21.392464 | 16.0 | 155.0 | Microlensing Event | Microlensing candidate from ZTF |
| ZTF20abendxc | 281.224708 | -8.538111 | 16.1 | 163.0 | YSO | Possibly eruptive YSO |
| ASASSN-25cd | 277.969917 | -28.807539 | 16.4 | 165.0 | Unknown | A Deep, Ongoing, Dipping Event |
| Gaia24amo | 249.148921 | -53.749919 | 16.9 | 135.0 | Microlensing Event | candidate microlensing event, with the second peak |
| Gaia23cnm | 285.322920 | -18.717130 | 17.6 | 173.0 | Unknown | slow and long rise, possible microlensing or YSO |
Last week's total of images processed: 11842 (11745 with success).
Last week's targets observed:
| camera | target_names |
|---|---|
| AZT-8_C4-16000 | Gaia16amd, Gaia17cuh |
| Adonis_G2-1600 | TabbysStar, AT 2026rdg, AM_Her, TCP J21220926+4926242, Gaia24dfv, AT2025acft, Gaia24azc, TCrB |
| Adyu60_Andor-934 | SN 2026sqf, 2MASS_J22481357+6400230, Gaia24amv |
| AndromedaC14_QHY600M | SN 2026sqf |
| EEye_QHY268M | ZTF26aavkosv, Q0957+561_A |
| Flarestar-MPC171_QHY268M | UCAC-4 710-082844, Gaia21fji, AT2026lck, AT2025sqe, 1H2202+501, RUWE 18 star, TCrB |
| Kryoneri-1.2_Andor-Zyla | TCrB, SN 2026kid, UCAC-4 710-082844, Gaia18dry |
| LCOGT-CTIO-1m_4K | OGLE-2026-BLG-0128, OGLE-2026-DG-0010, OGLE-2026-BLG-0566, ZTF26aazvwlo, LSST-AP-DO-313690716557017106 |
| LCOGT-CTIO-40cm_QHY600M | HD 98800, Gaia16adj |
| LCOGT-HO-2m_Muscat | Cen X-4, MAXI J1659-152, V406 Vul, Aql X-1, MAXI J1820+070, XTE J1728-295, KV UMa, V1037Cas, GRO J1719-24, QZ Vul, MAXI J1910-057, MAXI J1807+132, V404_Cyg, 4U 1957+11 |
| LCOGT-HO-40cm_QHY600M | 1H1936+541 |
| LCOGT-MCD-1m_4K | ZTF26aazvwlo, Gaia18dry, 7C162526.19_544847.00, ZTF26aavkosv |
| LCOGT-SAAO-1m_4K | OGLE-2026-BLG-0128, OGLE-2026-DG-0010, OGLE-2026-BLG-0566, GRB260708A, ZTF26aazvwlo, LSST-AP-DO-313690716557017106, ZTF26aavkosv, ZTF25abwnxxl, OGLE-2026-BLG-0652, Gaia24amo |
| LCOGT-SAAO-40cm_QHY600M | HD 98800, GRB260708A |
| LCOGT-SS-1m_4K | OGLE-2026-BLG-0128, OGLE-2026-BLG-0566, ZTF26aazvwlo, LSST-AP-DO-313690716557017106, ZTF26aavkosv, AT2026ayt |
| LCOGT-SS-2m_Muscat | V4641 Sgr, XTE J1650-500, GX 339-4, XTE J1728-295, GRO J1719-24, MAXI J1910-057, MAXI J1803-298 |
| LCOGT-SS-40cm_QHY600M | Gaia19ati |
| LCOGT-Teide-1m_4K | Gaia21esu, ZTF26aazvwlo, 7C162526.19_544847.00, Gaia24amv, ZTF26aavkosv |
| LCOGT-Teide-40cm_QHY600M | Gaia16amd, Gaia24amv |
| MOLETAI-35cm_CCD4710 | AM_Her, V1117 Her, AT2025acft, BL_Lac, TCrB |
| Observatory | TCrB, UCAC-4 710-082844, Gaia18dry, AT 2026rdg |
| PROMPT2_FLI | ZTF26aavkosv |
| PROMPT5_Apogee | ZTF26aavkosv |
| Planetarium_Slaskie_Kepler4040 | ZTF18aarippg, V4141 Sgr, AT 2026pme, AT2025acft, 1H1936+541, AT 2026rdg, AT2026lck, TCrB, SN 2026sqf, GaiaDR3_4015591806678568576, Gaia23cqg, SN 2026pub, SN 2026fjc, B1721+343, V1117 Her, 2MASS_J22481357+6400230, SN 2026kid, 2MASSJ17300837+6247547, AT2025sqe, ZTF26aavkosv, SN 2026fvx, GaiaDR3_4263591911398361472, Mrk 817 |
| ROAD40_FLI-KAF-16803 | VW Hyi |
| SOAB_ZWO-ASI2600MM | UCAC-4 710-082844, LS I +61 302, Gaia18dry, AT2025abao, 8C0716_714, SN2024afyu, AT2026lck, AT2025sqe, SN 2026fvx, AT2026dmu, TCrB, SN 2026fov |
| Salerno_Observatory_FLI | UCAC-4 710-082844, Gaia23dqt, Gaia18dry, Gaia DR3 2207274751021560576, AT 2026rdg, GAIA DR3 2207162600835525760, Gaia20cdl, TCP J21220926+4926242, AT2025sqe, GROJ2058+42, BL_Lac, TCrB, SN 2026sqf, RXJ0146.9+6121, SN 2026fov |
| Seestar-S30 | Gaia18dry, 8C0716_714, BL_Lac, SN 2026sqf, SN 2026fov |
| Seestar-S50 | Gaia18dry, AT 2026rdg, 8C0716_714, AT2026lck, Gaia21esb, ZTF26aavkosv, SN 2026fvx, DO_Dra, BL_Lac, TCrB, SN 2026sqf, SN 2026kid, SN 2026fov |
| TJO_MEIA3 | LS I +61 302, Gaia23dqt, AM_Her, AT2025abao, AT2026lck, EECep, AT2025acft, GaiaDR3_4263591911398361472, Gaia24dfc, TCrB |
| TTT3_COLORS | 2026ngr |
Last week's fits uploads score (sorted by count)
| observatory-user | count |
|---|---|
| Franz-Josef Hambsch (ROAD40_FLI-KAF-16803) | 8037 |
| Pavol Dubovsky (Observatory) | 534 |
| Waldemar Ogloza (Planetarium_Slaskie_Kepler4040) | 510 |
| Valerio Bozza (Salerno_Observatory_FLI) | 470 |
| Justas Zdanavicius (MOLETAI-35cm_CCD4710) | 388 |
| Josep Manel Carrasco (TJO_MEIA3) | 338 |
| Rachel Street (LCOGT-SAAO-1m_4K) | 301 |
| Rachel Street (LCOGT-SS-1m_4K) | 150 |
| Sebastian Kurowski (SOAB_ZWO-ASI2600MM) | 145 |
| Rachel Street (LCOGT-CTIO-1m_4K) | 127 |
| Waldemar Ogloza (Adyu60_Andor-934) | 97 |
| Maciej Sikora (Observatory) | 92 |
| Franky Dubois (Adonis_G2-1600) | 77 |
| Fraser Lewis (LCOGT-HO-2m_Muscat) | 56 |
| Mauritz Wicker (LCOGT-SAAO-1m_4K) | 42 |
| Stephen M. Brincat (Flarestar-MPC171_QHY268M) | 39 |
| Weronika Skrobacz (Seestar-S50) | 36 |
| Mauritz Wicker (LCOGT-SS-1m_4K) | 36 |
| Rachel Street (LCOGT-MCD-1m_4K) | 30 |
| Fraser Lewis (LCOGT-SS-2m_Muscat) | 28 |
| Lukasz Wyrzykowski (LCOGT-SAAO-1m_4K) | 22 |
| Sjoerd Dufoer (EEye_QHY268M) | 20 |
| Anna Olchowy (Seestar-S30) | 20 |
| Dimitrios Athanasopoulos (Kryoneri-1.2_Andor-Zyla) | 20 |
| Lukasz Wyrzykowski (LCOGT-CTIO-40cm_QHY600M) | 20 |
| Mauritz Wicker (LCOGT-MCD-1m_4K) | 18 |
| Andrii Simon (LCOGT-SS-40cm_QHY600M) | 16 |
| Lukasz Wyrzykowski (LCOGT-SAAO-40cm_QHY600M) | 15 |
| Mauritz Wicker (LCOGT-CTIO-1m_4K) | 14 |
| Andrii Simon (LCOGT-CTIO-40cm_QHY600M) | 14 |
| Franz-Josef Hambsch (AndromedaC14_QHY600M) | 12 |
| Mauritz Wicker (LCOGT-Teide-1m_4K) | 12 |
| Marcin Michalski (Seestar-S50) | 12 |
| Jacek Drazkowski (Seestar-S50) | 10 |
| Staszek Zola (PROMPT2_FLI) | 9 |
| Lukasz Wyrzykowski (LCOGT-CTIO-1m_4K) | 8 |
| Małgorzata Szymaszek (Seestar-S30) | 8 |
| Jacek Drazkowski (Seestar-S30) | 6 |
| Lukasz Wyrzykowski (LCOGT-Teide-1m_4K) | 6 |
| Andrii Simon (LCOGT-Teide-40cm_QHY600M) | 5 |
| Staszek Zola (PROMPT5_Apogee) | 5 |
| Astro Koluszki (Seestar-S30) | 4 |
| Andrii Simon (AZT-8_C4-16000) | 4 |
| Lukasz Wyrzykowski (LCOGT-SS-1m_4K) | 4 |
| Andrii Simon (Adyu60_Andor-934) | 4 |
| Astro Koluszki (Seestar-S50) | 4 |
| Rachel Street (LCOGT-Teide-1m_4K) | 3 |
| Andrii Simon (LCOGT-SAAO-40cm_QHY600M) | 3 |
| Andrii Simon (LCOGT-HO-40cm_QHY600M) | 2 |
| Andrii Simon (LCOGT-Teide-1m_4K) | 2 |
| Joysankar Majumdar (LCOGT-MCD-1m_4K) | 2 |
| Patryk Piekarz (Seestar-S50) | 2 |
| Lukasz Wyrzykowski (LCOGT-MCD-1m_4K) | 1 |
| Eduardo Concepcion (TTT3_COLORS) | 1 |
| Joysankar Majumdar (LCOGT-SS-1m_4K) | 1 |
Top 5 data uploaders!
| name | count |
|---|---|
| Franz-Josef Hambsch | 8049 |
| Rachel Street | 611 |
| Waldemar Ogloza | 607 |
| Pavol Dubovsky | 534 |
| Valerio Bozza | 470 |
Clear skies!
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