Greetings from the BHTOM Automated Newsletter!
As of 2025-12-08 12:02:14.317542+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 |
|---|---|---|---|---|---|---|
| Nova Velorum 2025 | 156.307917 | -53.521917 | 10.9 | 77.0 | Nova | V572 Vel is PNV J10251200-5331109 |
| HAT-P-15 | 66.248063 | 39.460642 | 11.4 | 162.0 | Planetary Transit | Transit from ExoClock, next transit 2025-12-05, depth 13mmag, duration 5h |
| HL CMa | 101.321712 | -16.859596 | 13.5 | 133.0 | CV | Z Cam-Type Star |
| PNV J05271319-7009185 | 81.808810 | -70.156210 | 14.0 | 87.0 | Nova | known nova |
| SN 2025aedz | 87.694304 | 58.914769 | 17.0 | NaN | SN | Type II SN |
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 | 9.6 | 125.0 | XRB | Supergiant X-ray binary |
| RXJ0441.0+4431 | 70.247207 | 44.530349 | 9.6 | 158.0 | XRB | Be X-ray binary |
| LS I +61 302 | 40.131935 | 61.229332 | 9.6 | 135.0 | Unknown | Be-star with unknown compact companion |
| RXJ0146.9+6121 | 26.750885 | 61.356573 | 10.5 | 129.0 | XRB | Be X-ray binary |
| EECep | 332.344808 | 55.756738 | 10.6 | 102.0 | Variable star-other | Long period eclipsing binary with accretion disk, eclipse ongoing! |
| 4U2206+54 | 331.984320 | 54.518447 | 10.7 | 101.0 | XRB | Be X-ray binary |
| 1H2202+501 (BD+49 3718) | 330.409176 | 50.167954 | 11.0 | 99.0 | XRB | optical counterpart of the Be X-Ray Binary |
| 1H1936+541 (BD+53 2262) | 293.217949 | 53.879297 | 11.1 | 83.0 | XRB | optical counterpart of the Be X-Ray Binary |
| TOI-1259Ab | 282.100291 | 79.256044 | 12.2 | 103.0 | Planetary Transit | planetary transit from ExoClock |
| AM_Her | 274.055228 | 49.867989 | 12.3 | 75.0 | CV | Target for joint optical-radio observations |
| IGRJ06074+2205 | 91.860884 | 22.096600 | 12.3 | 164.0 | XRB | Be X-ray binary |
| SAXJ2103.5+4545 | 315.898792 | 45.751547 | 12.6 | 88.0 | XRB | Be X-ray binary |
| TOI-3714 | 69.552231 | 39.458308 | 13.0 | 163.0 | Planetary Transit | planetary transit from ExoClock |
| AT2025acft | 295.939833 | 40.367889 | 13.5 | 74.0 | Microlensing Event | Candidate long microlensing event from Chinese KATS survey, KATS25V002 |
| FU Tau | 65.897463 | 25.050763 | 13.6 | 172.0 | YSO | Next (out?)burst started |
| Gaia22efa | 67.656210 | 35.842100 | 13.7 | 165.0 | YSO | Brightening in candidate YSO. After initial accretion burst the brightness started to rise slowly. |
| GROJ2058+42 | 314.698071 | 41.776995 | 14.1 | 85.0 | XRB | Be X-ray binary |
| BL_Lac | 330.680381 | 42.277772 | 14.2 | 95.0 | BL Lac | famous variable blazar |
| AT2025abao | 9.702583 | 40.768972 | 14.3 | 123.0 | Unknown | candidate Luminous Red Nova near M31 |
| Gaia21fji | 315.992250 | 50.244500 | 14.6 | 91.0 | YSO | Optical monitoring of Gaia- and ZTF-alerted candidate eruptive YSOs |
| 4U0115+63 | 19.633210 | 63.742520 | 14.6 | 125.0 | XRB | Be X-ray binary |
| 8C0716_714 | 110.472701 | 71.343434 | 14.9 | 127.0 | QSO | checking of ~1.7-days periodic variability and quasi-periodic variability of ~24 days |
| IGRJ21343+4738 | 323.584883 | 47.633391 | 15.0 | 93.0 | XRB | Be X-ray binary |
| TDE2018mqa | 122.525237 | 24.922189 | 15.0 | 136.0 | TDE | TDE-He candidate |
| 3C 138 | 80.291192 | 16.639459 | 15.1 | 172.0 | QSO | Compact Steep Spectrum (CSS) type source currently flaring in Gamma-rays and optical |
| Gaia24dfc | 52.509900 | 61.429790 | 15.8 | 138.0 | Unknown | Brightening in candidate YSO |
| Gaia18bwz | 174.611270 | 3.368310 | 15.8 | 82.0 | CV | Known dwarf nova QZ Vir in outburst |
| TDE2025aeze | 11.493892 | 34.099292 | 15.9 | 124.0 | TDE | TDE candidate |
| NGC5683-Seyfert | 218.718578 | 48.661870 | 16.1 | 78.0 | AGN | active nucleus of a nearby galaxy for frequent monitoring |
| Gaia24ala | 86.808830 | 0.152040 | 16.2 | 155.0 | YSO | Dimming in candidate YSO |
| Gaia2204674337304419072 | 334.773114 | 61.604365 | 16.2 | 105.0 | Unknown | Possibly eruptive YSO which is approaching to the quiescence |
| 2025eve | 138.673796 | 15.702344 | 16.5 | 120.0 | TDE | Classified as TDE, almost gone |
| Q0957+561_A | 150.336216 | 55.898776 | 16.7 | 117.0 | QSO | firstly confirmed lensed quasar (double image), image A (top) |
| SDSSJ094533.99+100950.1 | 146.391622 | 10.163917 | 17.7 | 111.0 | QSO | Long term variable quasar for monitoring |
| Gaia24bux | 347.418150 | 62.482960 | 17.8 | 111.0 | YSO | Brightening in Gaia and Wise source, possibly new young eruptive star |
| Gaia24aqv | 29.373710 | 28.864700 | 17.9 | 139.0 | Unknown | possibly a flare in the centre of a galaxy |
| name | ra | dec | mag_last | sun_separation | classification | description |
|---|---|---|---|---|---|---|
| HD 98800 | 170.521620 | -24.777768 | 10.7 | 76.0 | YSO | Pre-main sequence quadruple system (AaAb + BaBb) with circumbinary (BaBb) disk to eclipse AaAb |
| T Ori | 83.960201 | -5.476368 | 11.1 | 150.0 | YSO | Herbig AeBe star, YSO |
| MXB0656-072 | 104.572033 | -7.209779 | 11.3 | 138.0 | XRB | Be X-ray binary |
| ASASSN-25bv | 134.564850 | -43.165320 | 11.6 | 94.0 | Unknown | bright star with large dimmings from ASASSN |
| V1787 Ori | 84.538767 | -6.821276 | 12.9 | 149.0 | YSO | Herbig Ae.Be Star |
| Mkn590 | 33.639835 | -0.766717 | 13.8 | 134.0 | QSO | Flaring quasar |
| TT Ori | 83.819730 | -4.762387 | 13.8 | 151.0 | YSO | eruptive variable, Orion type |
| TDE2025aarm | 68.051646 | -5.377697 | 13.9 | 151.0 | TDE | Nearby TDE from TNS |
| PKS0454-234 | 74.263250 | -23.414450 | 14.1 | 134.0 | QSO | long time monitoring for ROTUZ team |
| IRAS 23226-3843 | 351.350833 | -38.446978 | 14.3 | 81.0 | AGN | changinglook AGN |
| AT2025xvc | 85.526933 | -67.018517 | 14.4 | 90.0 | Unknown | possibile bright nova or CV in LMC from GOTO,TNS |
| mrk1018 | 31.566619 | -0.291455 | 14.8 | 132.0 | AGN | changinglook AGN |
| HE0413_4031 | 63.810269 | -40.394754 | 15.8 | 116.0 | QSO | Long term variable quasar for monitoring |
| PMNJ0730-6602 | 112.706495 | -66.038578 | 16.4 | 87.0 | AGN | IAUZ Target |
| HE0435-4312 | 69.299139 | -43.101189 | 16.9 | 114.0 | QSO | Long term variable quasar for monitoring |
| AT2025aarn | 69.331575 | -8.776647 | 17.2 | 148.0 | Unknown | bright new source, possible supernova type II |
| Gaia23dgf | 120.642180 | -2.372900 | 17.9 | 129.0 | TDE | ~0.3 mag rise in Gaia source |
Last week's total of images processed: 10361 (10146 with success).
Last week's targets observed:
| camera | target_names |
|---|---|
| Adonis_G2-1600 | EECep, TabbysStar, LS I +61 302, AT2025acft |
| Apogee_Aspen_47 | Gaia22efa |
| Auzielle_ASI-294mm | mon TCP J19522056+0929231 |
| EEye_QHY268M | Q0957+561_A, Gaia24aup, AT2025acft |
| GeoNAO-1.5_ANDOR-iKon-XL-230 | Gaia23dqt, Gaia24bux, Gaia24aup, AT2024kwu |
| LCOGT-HO-40cm_QHY600M | OJ287 |
| LCOGT-MCD-1m_4K | AT2025acft |
| LCOGT-MCD-40cm_QHY600M | OJ287 |
| LCOGT-SAAO-1m_4K | SN2022qml |
| LCOGT-Teide-1m_4K | AT2025acft |
| LCOGT-Teide-40cm_QHY600M | EECep, HAT-P-15, OJ287 |
| MLC-RCOS16_SBIG-STXL-11002 | EECep |
| Moravian_C3-61000_PRO | Gaia22efa |
| OAUJ-CDK500_U47 | EECep, ASASSN-24fw |
| PROMPT-MO-1_Apogee | ASASSN-24fw, Gaia20agb, Gaia22alz |
| PROMPT5_Apogee | ASASSN-24fw |
| ROAD40_FLI-KAF-16803 | V4140 Sgr, HL CMa, LHA 120-S 119, BC Dor, LHA 120-S 18, PNV J19321040-2052505, CRTSJ202731.2-224002, SV Eri, V348 Sgr |
| ROAD40_QHY600M | HD 269953, TDE2025aarm, HD269110, ASASSN-25ej, FU Ori, V4141 Sgr, 1H2202+501 (BD+49 3718), Gaia24dhn, T Ori, HD 269840, 2MASS J07233213+0926393, TT Ori, HD 269582, ASASSN-24fw, 1H1936+541 (BD+53 2262), HD 98800, ASASSN-21qj, HD 268687, ASASSN-21js, ASASSN-25dy, Gaia23dnm, AT2025xvc, PNV J05271319-7009185, Nova Velorum 2025, ASASSN-25bv, HD 269006, Gaia19eyy, TX Ori, HD 312919, OY Mon |
| RRRT_SBIG-STX16803 | EECep |
| SOAB_ZWO-ASI2600MM | Gaia24bux, EECep, 4U0115+63, Gaia24ala, Gaia24dfc, AT2025abao, TT Ori, 3C 138, LS I +61 302 |
| Salerno_Observatory_FLI | TOI-1899 |
| UCLO-C14WEST_QHY600M-PH | AT2025acft |
| UZPW50_Chile_QHY268PRO | PKS0454-234, Gaia24aqv, Mkn590, AT2025xes, mrk1018, AT2025xvc, HE0413_4031, Gaia24ala, TDE2025aarm, AT2025aarn |
Last week's fits uploads score (sorted by count)
| observatory-user | count |
|---|---|
| Franz-Josef Hambsch (ROAD40_FLI-KAF-16803) | 4598 |
| Franz-Josef Hambsch (ROAD40_QHY600M) | 4528 |
| Staszek Zola (MLC-RCOS16_SBIG-STXL-11002) | 282 |
| Valerio Bozza (Salerno_Observatory_FLI) | 225 |
| Staszek Zola (OAUJ-CDK500_U47) | 224 |
| Sebastian Kurowski (SOAB_ZWO-ASI2600MM) | 76 |
| Agata Wozniak (UZPW50_Chile_QHY268PRO) | 74 |
| Steve Fossey (UCLO-C14WEST_QHY600M-PH) | 54 |
| Katarzyna Kruszynska (LCOGT-Teide-1m_4K) | 35 |
| Staszek Zola (RRRT_SBIG-STX16803) | 30 |
| Michal Siwak (Moravian_C3-61000_PRO) | 27 |
| Teimuraz Kvernadze (GeoNAO-1.5_ANDOR-iKon-XL-230) | 25 |
| Joysankar Majumdar (LCOGT-SAAO-1m_4K) | 24 |
| Sjoerd Dufoer (EEye_QHY268M) | 22 |
| Katarzyna Kruszynska (LCOGT-MCD-1m_4K) | 20 |
| Joysankar Majumdar (LCOGT-Teide-40cm_QHY600M) | 19 |
| Joysankar Majumdar (LCOGT-MCD-40cm_QHY600M) | 19 |
| Staszek Zola (PROMPT-MO-1_Apogee) | 18 |
| Fraser Lewis (LCOGT-Teide-40cm_QHY600M) | 15 |
| Franky Dubois (Adonis_G2-1600) | 15 |
| Joysankar Majumdar (LCOGT-HO-40cm_QHY600M) | 12 |
| Michal Siwak (Apogee_Aspen_47) | 5 |
| Christian SARTINI (Auzielle_ASI-294mm) | 4 |
| Staszek Zola (PROMPT5_Apogee) | 3 |
| name | count |
|---|---|
| Franz-Josef Hambsch | 9126 |
| Staszek Zola | 557 |
| Valerio Bozza | 225 |
| Joysankar Majumdar | 79 |
| Sebastian Kurowski | 76 |