Greetings from the BHTOM Automated Newsletter!
As of 2026-03-09 13:17:02.687340+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 |
|---|---|---|---|---|---|---|
| GaiaDR3_4015591806678568576 | 187.342321 | 32.394509 | 11.2 | 147.0 | Unknown | TON618, Gaia DR3 parallax: 5.900 |
| 170032917163016282 | 187.707737 | 8.273932 | 19.4 | 161.0 | Unknown | Possible SN candidate in LSST |
| LSST_314051320803229791 | 51.869496 | -28.895120 | 21.8 | 64.0 | Unknown | Most likely a SN at the edge of a galaxy. Rising fast (~0.2mag in 2 days) |
| LSST_313941448591409201 | 52.070011 | -27.044164 | 21.9 | 64.0 | Unknown | Tagged as either a SN or an AGN, rising fast |
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 | 7.3 | 109.0 | Nova | recurent nova predicted to explode 2024/2025 |
| LS I +61 302 | 40.131935 | 61.229332 | 9.5 | 77.0 | Unknown | Be-star with unknown compact companion |
| RXJ0441.0+4431 | 70.247207 | 44.530349 | 10.5 | 87.0 | XRB | Be X-ray binary |
| 2S0114+65 | 19.511240 | 65.291619 | 11.1 | 73.0 | XRB | Supergiant X-ray binary |
| 1H1936+541 (BD+53 2262) | 293.217949 | 53.879297 | 11.1 | 75.0 | XRB | optical counterpart of the Be X-Ray Binary |
| RXJ0146.9+6121 | 26.750885 | 61.356573 | 11.3 | 72.0 | XRB | Be X-ray binary |
| Gaia22efa | 67.656210 | 35.842100 | 12.0 | 83.0 | YSO | Brightening in candidate YSO. After initial accretion burst the brightness started to rise slowly. |
| IGRJ06074+2205 | 91.860884 | 22.096600 | 12.2 | 103.0 | XRB | Be X-ray binary |
| V1117 Her | 249.776779 | 9.798698 | 12.8 | 100.0 | Unknown | PMS star, Herbig Ae star |
| AM_Her | 274.055228 | 49.867989 | 12.9 | 84.0 | CV | Target for joint optical-radio observations |
| Mrk 817 | 219.092017 | 58.794299 | 13.9 | 114.0 | Unknown | Seyfert 1 AGN |
| 8C0716_714 | 110.472701 | 71.343434 | 14.0 | 104.0 | QSO | checking of ~1.7-days periodic variability and quasi-periodic variability of ~24 days |
| Mrk 841 | 226.004963 | 10.437732 | 14.1 | 123.0 | AGN | changinglook AGN |
| 4U0115+63 | 19.633210 | 63.742520 | 14.2 | 72.0 | XRB | Be X-ray binary |
| ZTF18aarippg | 217.566838 | 23.062372 | 15.2 | 130.0 | QSO | Tick-Tok possibly merging Super Massive Black Hole binary |
| NGC5683-Seyfert | 218.718578 | 48.661870 | 15.4 | 119.0 | AGN | active nucleus of a nearby galaxy for frequent monitoring |
| SN 2026dix | 177.655950 | 55.353589 | 15.4 | 129.0 | Unknown | Closeby IIb supernova |
| 3C 138 | 80.291192 | 16.639459 | 15.9 | 92.0 | QSO | Compact Steep Spectrum (CSS) type source currently flaring in Gamma-rays and optical |
| Gaia24ala | 86.808830 | 0.152040 | 16.1 | 98.0 | YSO | Dimming in candidate YSO |
| SN2024afyu | 258.429383 | 7.625256 | 16.4 | 91.0 | SN | Interesting long-term Supernova |
| SN 2025aico | 172.318154 | 20.585703 | 16.8 | 164.0 | SN | Young SN classified as a II or IIb |
| Gaia24dfc | 52.509900 | 61.429790 | 16.8 | 82.0 | Unknown | Brightening in candidate YSO |
| AT2026bti | 210.693421 | 24.826742 | 16.9 | 135.0 | Unknown | optical transient |
| Q0957+561_A | 150.336216 | 55.898776 | 17.0 | 127.0 | QSO | firstly confirmed lensed quasar (double image), image A (top) |
| 1ES 0502+675 | 76.984013 | 67.623396 | 17.0 | 93.0 | BL Lac | Blazar interesting in the context of search for intergalactic magnetic field |
| SN2025ahsa | 218.750883 | 0.986231 | 17.4 | 130.0 | Unknown | Supernova SN Ia |
| Gaia16aoz | 162.115140 | 71.726660 | 17.7 | 113.0 | QSO | QSO with a long-term and short-term variability |
| name | ra | dec | mag_last | sun_separation | classification | description |
|---|---|---|---|---|---|---|
| HD 98800 | 170.521620 | -24.777768 | 9.9 | 151.0 | YSO | Pre-main sequence quadruple system (AaAb + BaBb) with circumbinary (BaBb) disk to eclipse AaAb |
| T Ori | 83.960201 | -5.476368 | 10.6 | 94.0 | YSO | Herbig AeBe star, YSO |
| MXB0656-072 | 104.572033 | -7.209779 | 11.2 | 114.0 | XRB | Be X-ray binary |
| TCP J18265456-2719122 | 276.727333 | -27.320056 | 12.2 | 72.0 | Unknown | transient object |
| AT 2025nlr | 227.013640 | -40.141550 | 13.1 | 111.0 | Nova | Astro-COLIBRI target |
| V4141 Sgr | 267.599257 | -19.895328 | 13.2 | 81.0 | Symbiotic star | symbiotic star |
| ngc 3783 | 174.757132 | -37.738611 | 13.6 | 137.0 | AGN | Nearby Seyfert 1 galaxy, active galactic nucleus, interesting for X-ray, high cadence data neeeded, potentially flaring |
| TCP J05191540-0204515 | 79.814167 | -2.080972 | 13.7 | 90.0 | Unknown | T Tauri Star |
| ASASSN-26aa | 219.340667 | -58.794667 | 14.0 | 105.0 | Unknown | potential nova from ASASSN |
| AT2026ayt | 141.847458 | -32.008578 | 14.2 | 135.0 | Unknown | Optical transient, potential weird supernova |
| TDE2025aarm | 68.051646 | -5.377697 | 14.6 | 78.0 | TDE | Nearby TDE from TNS |
| V5856 Sgr | 275.217710 | -28.370030 | 14.6 | 74.0 | Nova | CV and Nova outburts |
| AR Sco | 245.447013 | -22.886218 | 14.6 | 101.0 | CV | White Dwarf pulsar |
| PKS0454-234 | 74.263250 | -23.414450 | 14.7 | 84.0 | QSO | long time monitoring for ROTUZ team |
| Nova Sagittarii 2025 no.4 | 270.969917 | -31.456667 | 14.9 | 78.0 | Nova | Nova Sgr 2025 No. 4 is TCP J18035290-3127298 is TCP J18035278-3127240 |
| ASASSN-26af | 82.501958 | -66.724833 | 15.1 | 87.0 | Unknown | Undergoing Deep Dimming Events in the LMC |
| Gaia19dbf | 178.699417 | -64.491850 | 15.5 | 111.0 | Unknown | Possibly a YSO |
| Gaia24dhd | 271.552460 | -25.319220 | 15.7 | 77.0 | Unknown | candidate microlensing event |
| HE0413_4031 | 63.810269 | -40.394754 | 15.9 | 75.0 | QSO | Long term variable quasar for monitoring |
| SN2026afe | 99.860204 | -21.822386 | 16.0 | 107.0 | Unknown | Type SN Ia-pec |
| AT2025xvc | 85.526933 | -67.018517 | 16.1 | 88.0 | Unknown | possibile bright nova or CV in LMC from GOTO,TNS |
| ASASSN-25cd | 277.969917 | -28.807539 | 16.3 | 71.0 | Unknown | A Deep, Ongoing, Dipping Event |
| PMNJ0730-6602 | 112.706495 | -66.038578 | 16.4 | 99.0 | AGN | IAUZ Target |
| Gaia24amo | 249.148921 | -53.749919 | 16.7 | 92.0 | Microlensing Event | candidate microlensing event, with the second peak |
| AT2026coj | 120.295917 | -3.720583 | 16.8 | 130.0 | Unknown | Bright Cataclysmic Variable candidate from TNS |
| AT2023aece | 238.433929 | -14.738814 | 16.9 | 109.0 | AGN | nuclear transient with an extremely long lived, rising lightcurve. |
| AT 2025acve | 270.700667 | -5.976583 | 17.1 | 78.0 | Unknown | Unclassified optical transient discovered by XOSS, potential microlensing event |
| Gaia24dhc | 271.324950 | -25.851100 | 17.4 | 77.0 | Unknown | ~0.2 mag rise in red Gaia source |
| ASASSN-25fd | 187.851667 | -59.119028 | 17.4 | 115.0 | Nova | Nova in Crux, PNV J12312434-5907133 |
Last week's total of images processed: 6903 (5669 with success).
Last week's targets observed:
| camera | target_names |
|---|---|
| Adonis_G2-1600 | Gaia24dja, SN 2026dix, LS I +61 302 |
| HAO50_QHY268M | 8C0716_714, AT2025acft |
| HAO68_G2-1600 | AT2025kjp, AT2025abao, AT2026dmu, TDE2026dmt, Q0957+561_A, 8C0716_714, ZTF18aarippg, LS I +61 302, SN 2025ajmz, SN 2026dix, AT2026cex, TCrB |
| LCOGT-CTIO-1m_4K | AT2026ayt, M1, LSST_313994139532263447 |
| LCOGT-HO-40cm_QHY600M | TCrB |
| LCOGT-MCD-1m_4K | M1 |
| LCOGT-SAAO-1m_4K | AT2026ayt, LSST_313994139532263447 |
| LCOGT-SS-1m_4K | Gaia24amo |
| LCOGT-SS-2m_Spectral | M1 |
| LCOGT-Teide-1m_4K | AT2025acft |
| Moravian_C3-61000_PRO | 170032917163016282, AT2025acft, TDE2025afsj, TCP J21220926+4926242, LSST_170046089928376424, SN 2026dix, Gaia22efa |
| OAUJ-CDK500_U47 | AT2025abao, TOI-1259Ab, TOI-3714, SN 2026dix, AT2026cex |
| Ostrowik-60-cm_SOFIA_E2V | TOI-3757, ZGP-BLAP-01, Gaia22efa, 8C0716_714 |
| ROADC14_QHY600M | MASTER OT J142023.47-485540.0 |
| RRRT_SBIG-STX16803 | AT2026cex |
| SOAB_ZWO-ASI2600MM | Gaia24dfc, AT2025abao, NSVS 15567664, SN 2025aico, Gaia19cci, GaiaDR3_430079440716188032, TCP J05191540-0204515, CRTS0920+0019, Gaia20dvq, TDE2018mqa, Gaia24dcs, 2025eve, SN2025ahsa, GaiaDR3_66995412441675008, Gaia19afc, UCAC4534-047028, Gaia18cmh, Mrk 817, Gaia16aoz, TCP J21220926+4926242, SDSSJ094533.99+100950.1, Gaia16azp, Gaia21edc, Gaia19flk, MGAB-V266, Gaia23dgf, TCrB, GaiaDR3_359766943416012288, GaiaDR3_2248646830952630272, Gaia3419844555272494592, 1ES 0502+675, AT2020adgg, AT 2025acve, ZTF18aarippg, Mrk 841, TDE2025aarm, SN2024afyu, HAT-P-15, Gaia24ayk, Gaia22ehn, SN 2026dix, Gaia22efa, Gaia20dzh, SW_Sex, AT2025acft, 3C 138, Gaia21duc, BEST-II lra2a_00811, AT2025sqe, AM_Her, HD14916, AT2026coj, LS I +61 302, EECep, Gaia19aif, Gaia24bux, Gaia21bnu, AT2026bti |
| Seestar-S50 | 8C0716_714, BL_Lac |
| Slooh-AU_FLI-KAF-16803 | AT2026ayt, ASASSN-25ff, MXB0656-072, AT2026coj, SN2026afe |
| UZPW50_Chile_QHY268PRO | PMNJ0730-6602, AT2020xys, 2025eve, Gaia18bwz, Gaia22alz, ASASSN-25bv, ngc 3783, RX Vol, Gaia23dgf, Gaia23dgt, SN2013bw, Gaia24dcm, TDE2026chm, ASASSN-25fd, AT2026cex, AT2026ayt, HD 98800, Gaia22bpl, Gaia23dkq, Gaia21fhv, MGAB-V3780, SN2026afe, Gaia19dbf, Gaia21fkl |
| UwB_SBIG-4040 | SDSS J101353.45+492758.1 |
Last week's fits uploads score (sorted by count)
| observatory-user | count |
|---|---|
| Franz-Josef Hambsch (ROADC14_QHY600M) | 4219 |
| Sebastian Kurowski (SOAB_ZWO-ASI2600MM) | 1097 |
| Staszek Zola (OAUJ-CDK500_U47) | 400 |
| Michal Siwak (Moravian_C3-61000_PRO) | 336 |
| Agata Wozniak (UZPW50_Chile_QHY268PRO) | 238 |
| Jan Kåre Trandem Qvam (HAO68_G2-1600) | 224 |
| Lukasz Wyrzykowski (Ostrowik-60-cm_SOFIA_E2V) | 201 |
| Jacek Drazkowski (Seestar-S50) | 62 |
| Franky Dubois (Adonis_G2-1600) | 25 |
| Nicholas Rattenbury (Slooh-AU_FLI-KAF-16803) | 23 |
| Patryk Matera (Seestar-S50) | 12 |
| Krzysztof Słowik (Seestar-S50) | 12 |
| Jakub Komar (Seestar-S50) | 10 |
| Joysankar Majumdar (LCOGT-SAAO-1m_4K) | 5 |
| Staszek Zola (RRRT_SBIG-STX16803) | 5 |
| Paweł Baranowski (Seestar-S50) | 4 |
| Lukasz Wyrzykowski (LCOGT-HO-40cm_QHY600M) | 4 |
| Jan Kåre Trandem Qvam (HAO50_QHY268M) | 4 |
| Mauritz Wicker (LCOGT-Teide-1m_4K) | 3 |
| Lukasz Wyrzykowski (LCOGT-SS-2m_Spectral) | 3 |
| Mauritz Wicker (LCOGT-SS-1m_4K) | 3 |
| Joysankar Majumdar (LCOGT-CTIO-1m_4K) | 3 |
| Jerzy Surma (Seestar-S50) | 2 |
| Wojciech Burzyński (UwB_SBIG-4040) | 2 |
| Priscila Pessi (LCOGT-CTIO-1m_4K) | 2 |
| Priscila Pessi (LCOGT-SAAO-1m_4K) | 2 |
| Lukasz Wyrzykowski (LCOGT-CTIO-1m_4K) | 1 |
| Lukasz Wyrzykowski (LCOGT-MCD-1m_4K) | 1 |
| name | count |
|---|---|
| Franz-Josef Hambsch | 4219 |
| Sebastian Kurowski | 1097 |
| Staszek Zola | 405 |
| Michal Siwak | 336 |
| Agata Wozniak | 238 |