BHTOM Targets for 22 September, 2025
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wyrz...@gmail.com
Sep 22, 2025, 6:06:57 AMSep 22
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Hello,
Top 5 data uploaders!
Clear skies!
Your BHTOM Team
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Greetings from the BHTOM Automated Newsletter!
As of 2025-09-22 10:05:35.180466+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 |
|---|---|---|---|---|---|---|
| AT2025wyg | 262.551250 | -27.896889 | 11.4 | 84.0 | Unknown | Nova found by Tadashi Kojima |
| AT2025xes | 66.887308 | -42.165719 | 15.1 | 107.0 | Unknown | Candidate nuclear transient from ATLAS via TNS |
| AT2025xeg | 119.111725 | -78.699383 | 15.5 | 85.0 | Unknown | Candidate supernova from ATLAS and GOTO via TNS |
| AT2025xop | 295.930617 | -18.696344 | 17.0 | 115.0 | Unknown | Candidate supernova from LAST via TNS, gone already |
| ZTF25aawwfve | 274.631244 | -20.899773 | 19.8 | 95.0 | Unknown | candidate binary microlensing event from ZTF |
| AT2025xvc | 85.526933 | -67.018517 | 20.2 | 92.0 | Unknown | possibile bright nova or CV in LMC from GOTO,TNS |
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 |
|---|---|---|---|---|---|---|
| 4U2206+54 | 331.984320 | 54.518447 | 9.4 | 121.0 | XRB | Be X-ray binary |
| EECep | 332.344808 | 55.756738 | 10.2 | 120.0 | Variable star-other | Long period eclipsing binary with accretion disk, eclipse predicted for October |
| 2S0114+65 | 19.511240 | 65.291619 | 10.9 | 113.0 | XRB | Supergiant X-ray binary |
| LS I +61 302 | 40.131935 | 61.229332 | 10.9 | 111.0 | Unknown | Be-star with unknown compact companion |
| RXJ0441.0+4431 | 70.247207 | 44.530349 | 11.1 | 103.0 | XRB | Be X-ray binary |
| ASASSN-24fw | 106.329000 | 6.205306 | 11.4 | 73.0 | Star | A MS star + IR excess that experienced a 2.5mag deep flux decrease (ATLAS/ASASSN). Needs BVRI (ZYJHK if available) monitoring for relative brightness in egress please |
| V1413 Aql | 285.945155 | 16.438048 | 11.9 | 106.0 | Symbiotic star | known symbiotic star for regular monitoring |
| IGRJ06074+2205 | 91.860884 | 22.096600 | 12.0 | 87.0 | XRB | Be X-ray binary |
| RXJ0146.9+6121 | 26.750885 | 61.356573 | 12.6 | 115.0 | XRB | Be X-ray binary |
| AM_Her | 274.055228 | 49.867989 | 12.9 | 93.0 | CV | Target for joint optical-radio observations |
| Gaia21fji | 315.992250 | 50.244500 | 13.1 | 117.0 | YSO | Optical monitoring of Gaia- and ZTF-alerted candidate eruptive YSOs |
| 8C0716_714 | 110.472701 | 71.343434 | 13.5 | 83.0 | QSO | high cadence variability suspected |
| GROJ2058+42 | 314.698071 | 41.776995 | 14.2 | 122.0 | XRB | Be X-ray binary |
| BL_Lac | 330.680381 | 42.277772 | 14.4 | 130.0 | BL Lac | famous variable blazar |
| 4U0115+63 | 19.633210 | 63.742520 | 14.4 | 114.0 | XRB | Be X-ray binary |
| KS1947+300 | 297.397850 | 30.208827 | 14.4 | 114.0 | XRB | Be X-ray binary |
| Gaia24ala | 86.808830 | 0.152040 | 14.5 | 92.0 | YSO | Dimming in candidate YSO |
| IGRJ21343+4738 | 323.584883 | 47.633391 | 14.8 | 123.0 | XRB | Be X-ray binary |
| Gaia22efa | 67.656210 | 35.842100 | 14.9 | 107.0 | YSO | Brightening in candidate YSO. After initial accretion burst the brightness started to rise slowly. |
| ZTF18abdciiz | 281.649375 | 0.922556 | 15.0 | 102.0 | Unknown | YSO candidate |
| SAXJ2103.5+4545 | 315.898792 | 45.751547 | 15.4 | 120.0 | XRB | Be X-ray binary |
| Gaia24bux | 347.418150 | 62.482960 | 16.2 | 117.0 | YSO | Brightening in Gaia and Wise source, possibly new young eruptive star |
| Gaia24dfc | 52.509900 | 61.429790 | 16.2 | 106.0 | Unknown | Brightening in candidate YSO |
| Gaia22cav | 344.036730 | 58.517780 | 16.7 | 120.0 | YSO | 3 mag outburst in candidate EXOR, waiting for the next outbursts |
| SN2024afyu | 258.429383 | 7.625256 | 16.9 | 79.0 | SN | Interesting long-term Supernova |
| TCP J22135399+3015357 | 333.473759 | 30.261681 | 17.0 | 141.0 | CV | probably UGWZ dwarf nova type |
| SDSS J013136.44+130331.0 | 22.901854 | 13.058618 | 17.3 | 153.0 | QSO | Candidate for lensed QSO |
| SN2025bof | 299.147242 | 50.239614 | 17.4 | 108.0 | SN | Possible SNIa in nearby galaxy |
| Gaia4323024741104637568 | 292.501025 | 17.933682 | 17.9 | 112.0 | Unknown | Possibly eruptive YSO which is approaching to the quiescence |
| name | ra | dec | mag_last | sun_separation | classification | description |
|---|---|---|---|---|---|---|
| T Ori | 83.960201 | -5.476368 | 11.3 | 95.0 | YSO | Herbig AeBe star, YSO |
| MXB0656-072 | 104.572033 | -7.209779 | 11.4 | 75.0 | XRB | Be X-ray binary |
| V1787 Ori | 84.538767 | -6.821276 | 12.9 | 95.0 | YSO | Herbig Ae/Be Star |
| TT Ori | 83.819730 | -4.762387 | 13.9 | 95.0 | YSO | eruptive variable, Orion type |
| mrk1018 | 31.566619 | -0.291455 | 13.9 | 148.0 | AGN | changinglook AGN |
| PKS0454-234 | 74.263250 | -23.414450 | 14.0 | 104.0 | QSO | long time monitoring for ROTUZ team |
| IRAS 23226-3843 | 351.350833 | -38.446978 | 14.4 | 141.0 | AGN | changinglook AGN |
| V416Ori | 83.838583 | -5.703439 | 14.6 | 95.0 | YSO | variable YSO |
| ZTF18acruktt | 88.904388 | -12.398039 | 14.8 | 90.0 | YSO | YSO candidate |
| Mkn590 | 33.639835 | -0.766717 | 14.9 | 146.0 | QSO | Flaring quasar |
| ASASSN-25cd | 277.969917 | -28.807539 | 15.2 | 98.0 | Unknown | A Deep, Ongoing, Dipping Event |
| Gaia23bsf | 276.583080 | -14.036970 | 15.3 | 97.0 | Unknown | Star getting brighter very slowly |
| 1RXS_J173546.9-302859 | 263.946400 | -30.482900 | 15.8 | 86.0 | Unknown | Possible X-ray transient from SVOM |
| HE0413_4031 | 63.810269 | -40.394754 | 15.9 | 109.0 | QSO | Long term variable quasar for monitoring |
| Gaia24amo | 249.148921 | -53.749919 | 16.1 | 79.0 | Microlensing Event | candidate microlensing event, with the second peak |
| PMNJ0730-6602 | 112.706495 | -66.038578 | 16.5 | 81.0 | AGN | IAUZ Target |
| HE0435-4312 | 69.299139 | -43.101189 | 16.8 | 105.0 | QSO | Long term variable quasar for monitoring |
| Gaia24csq | 286.710270 | -26.939590 | 16.8 | 106.0 | Unknown | potential slowly rising microlensing event |
| 4FGL J1603.8-4903 | 240.966507 | -49.061699 | 17.5 | 72.0 | Unknown | Astro-COLIBRI target |
| ZTF20abendxc | 281.224708 | -8.538111 | 17.8 | 102.0 | YSO | Possibly eruptive YSO |
| Gaia23cnm | 285.322920 | -18.717130 | 17.9 | 105.0 | Unknown | slow and long rise, possible microlensing or YSO |
Last week's total of images processed: 13771 (13455 with success).
Last week's targets observed:
| camera | target_names |
|---|---|
| ASV60_FLI | Gaia23cer, Gaia24azc, TCrB |
| AZT-8_C4-16000 | Gaia18acq, Gaia17cuh, Gaia19btn, Gaia18bad, Gaia23bcv, Gaia19cuu, Gaia24amv, Gaia18dom, Gaia18awg |
| Adonis_G2-1600 | TCrB, Gaia24azc, Gaia24dfv, Gaia24ayd, Gaia24azi, AM_Her, Gaia24dja, EECep, TabbysStar, LS I +61 302 |
| Adyu60_Andor-934 | Gaia18awg, Gaia23bcv |
| EEye_QHY268M | Gaia23cnm, AT2025mau, Gaia24csq, Gaia24aup, AT2024kwu |
| Flarestar-MPC171_G2-1600 | Gaia21fji, Gaia22efa, TCrB, TX Ori, 1H2202+501 (BD+49 3718), LS I +61 302 |
| HAO68_G2-1600 | TCrB |
| OAUJ-CDK500_U47 | Gaia21fji, AT2025mau, Gaia23dqt, GROJ2058+42, Gaia24ayd, EECep, AT2025nsa, SN2025bof, Gaia24bux |
| PROMPT6_FLI | AT2025mau, ASASSN-24fw |
| Planetarium_Slaskie_Kepler4040 | Gaia18awg, EECep, Gaia23bcv |
| ROAD_FLI-KAF-16803 | HD 269858, S Dor, V348 Sgr |
| ROAD_QHY600M | TCP J18022164-3310319, AT2025hfm, ASASSN-24fw, TCrB, HD 269858, ASASSN-25db, S Dor, ASASSN-21qj, V1413 Aql, AR_Pav, SN2025pht, AT 2025nlr, ASASSN-25cy, AT2025ggn |
| SOAB_ZWO-ASI2600MM | Gaia22efa, Mkn590, SDSS J013136.44+130331.0, 4U2206+54, AM_Her, mrk1018, EECep, Gaia24dfc, LS I +61 302, Gaia24bux |
| Slooh-AU_FLI-KAF-16803 | IRAS 23226-3843, CD-43_14304, HE0413_4031, ASASSN-25db, AT2025nwy, AT2025xes |
| Slooh-CL_FLI-KAF-16803 | Gaia24csq, IRAS 23226-3843, CD-43_14304, AT2025jtq |
| TJO_MEIA3 | SN2025rbs, Gaia24dkk |
| UZPW50_Chile_QHY268PRO | 3I_ATLAS-UZO-0.5m-mock_target_UZO_July_17, 3I_ATLAS-UZO-0.5m-mock_target_UZO_July_17_to_18, 3I_ATLAS-UZO-0.5m-mock_target_UZO_July_20_to_21, 3I_ATLAS-UZO-0.5m-mock_target_UZO_July_23_to_24, 3I_ATLAS-UZO-0.5m-mock_target_UZO_July_19 |
Last week's fits uploads score (sorted by count)
| observatory-user | count |
|---|---|
| Franz-Josef Hambsch (ROAD_FLI-KAF-16803) | 9028 |
| Franz-Josef Hambsch (ROAD_QHY600M) | 2040 |
| Fraser Gillan (UZPW50_Chile_QHY268PRO) | 783 |
| Josep Manel Carrasco (TJO_MEIA3) | 434 |
| Stephen M. Brincat (Flarestar-MPC171_G2-1600) | 388 |
| Dariia Rusanova (AZT-8_C4-16000) | 375 |
| Waldemar Ogloza (Adyu60_Andor-934) | 108 |
| Sebastian Kurowski (SOAB_ZWO-ASI2600MM) | 94 |
| Waldemar Ogloza (Planetarium_Slaskie_Kepler4040) | 91 |
| Franky Dubois (Adonis_G2-1600) | 68 |
| Sjoerd Dufoer (EEye_QHY268M) | 61 |
| Nicholas Rattenbury (Slooh-AU_FLI-KAF-16803) | 58 |
| Nicholas Rattenbury (Slooh-CL_FLI-KAF-16803) | 55 |
| Alicja Pucek (OAUJ-CDK500_U47) | 50 |
| Milan Stojanović (ASV60_FLI) | 49 |
| Yauheni Stsefanenka (OAUJ-CDK500_U47) | 36 |
| Staszek Zola (OAUJ-CDK500_U47) | 32 |
| Staszek Zola (PROMPT6_FLI) | 11 |
| Andrii Simon (AZT-8_C4-16000) | 3 |
| Jan Kåre Trandem Qvam (HAO68_G2-1600) | 2 |
Top 5 data uploaders!
| name | count |
|---|---|
| Franz-Josef Hambsch | 11068 |
| Fraser Gillan | 783 |
| Josep Manel Carrasco | 439 |
| Stephen M. Brincat | 388 |
| Dariia Rusanova | 375 |
Clear skies!
Your BHTOM Team
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