BHTOM Targets for 06 April, 2026
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wyrz...@gmail.com
Apr 6, 2026, 4:39:11 AM (8 days ago) Apr 6
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As of 2026-04-06 08:37:03.644280+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 |
|---|---|---|---|---|---|---|
| V437 Ori | 81.589878 | 11.526064 | 12.0 | 66.0 | YSO | Rather a dipper |
| ZTF20abjgfwm | 44.532644 | 61.215886 | 16.3 | 59.0 | YSO | eruptive YSO? |
| AT2026fyc | 103.325421 | -59.180369 | 17.0 | 95.0 | Unknown | SN candidate discovered by ASAS-SN |
| Gaia23bth | 105.006350 | 17.156030 | 18.4 | 88.0 | QSO | re-brightening in known QSO after it brightened by 0.8 mag in 2023 |
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 | 8.8 | 126.0 | Nova | recurent nova predicted to explode 2024/2025 |
| 1H1936+541 (BD+53 2262) | 293.217949 | 53.879297 | 11.0 | 80.0 | XRB | optical counterpart of the Be X-Ray Binary |
| V1413 Aql | 285.945155 | 16.438048 | 11.4 | 87.0 | Symbiotic star | known symbiotic star for regular monitoring |
| IGRJ06074+2205 | 91.860884 | 22.096600 | 12.3 | 76.0 | XRB | Be X-ray binary |
| AM_Her | 274.055228 | 49.867989 | 12.9 | 92.0 | CV | Target for joint optical-radio observations |
| 8C0716_714 | 110.472701 | 71.343434 | 13.5 | 86.0 | QSO | checking of ~1.7-days periodic variability and quasi-periodic variability of ~24 days |
| SN 2026fvx | 183.742221 | 63.787892 | 13.6 | 109.0 | SN | nearby supernova Type Ia |
| KS1947+300 | 297.397850 | 30.208827 | 13.8 | 76.0 | XRB | Be X-ray binary |
| V1117 Her | 249.776779 | 9.798698 | 13.8 | 123.0 | Unknown | PMS star, Herbig Ae star |
| Mrk 817 | 219.092017 | 58.794299 | 14.1 | 112.0 | Unknown | Seyfert 1 AGN |
| Mrk 841 | 226.004963 | 10.437732 | 14.4 | 145.0 | AGN | changinglook AGN |
| AT2025acft | 295.939833 | 40.367889 | 14.6 | 77.0 | Microlensing Event | Candidate long microlensing event from Chinese KATS survey, KATS25V002 |
| Gaia24ala | 86.808830 | 0.152040 | 14.7 | 72.0 | YSO | Dimming in candidate YSO |
| AT2025sqe | 288.715125 | 8.001778 | 15.2 | 85.0 | Unknown | slow galactic very red transient |
| NGC5683-Seyfert | 218.718578 | 48.661870 | 15.7 | 121.0 | AGN | active nucleus of a nearby galaxy for frequent monitoring |
| ZTF18aarippg | 217.566838 | 23.062372 | 16.2 | 143.0 | QSO | Tick-Tok possibly merging Super Massive Black Hole binary |
| AT2026bti | 210.693421 | 24.826742 | 16.3 | 145.0 | Unknown | optical transient |
| Gaia4323024741104637568 | 292.501025 | 17.933682 | 16.4 | 81.0 | Unknown | Possibly eruptive YSO which is approaching to the quiescence |
| SN 2025aico | 172.318154 | 20.585703 | 16.5 | 145.0 | SN | Young SN classified as a II or IIb |
| Gaia16aoz | 162.115140 | 71.726660 | 16.6 | 99.0 | QSO | QSO with a long-term and short-term variability |
| SN 2026dix | 177.655950 | 55.353589 | 16.6 | 117.0 | Unknown | Closeby IIb supernova |
| Q0957+561_A | 150.336216 | 55.898776 | 17.2 | 108.0 | QSO | firstly confirmed lensed quasar (double image), image A (top) |
| LSST_170094456334188639 | 149.218161 | 3.469923 | 17.4 | 133.0 | Unknown | LSST transient candidate with host 2MASX J09565234+0328119 |
| 1ES 0502+675 | 76.984013 | 67.623396 | 17.5 | 74.0 | BL Lac | Blazar interesting in the context of search for intergalactic magnetic field |
| SN2024afyu | 258.429383 | 7.625256 | 17.8 | 115.0 | SN | Interesting long-term Supernova |
| TDE2025aljd | 144.419537 | 20.037494 | 17.9 | 124.0 | Unknown | TDE candidate |
| name | ra | dec | mag_last | sun_separation | classification | description |
|---|---|---|---|---|---|---|
| MXB0656-072 | 104.572033 | -7.209779 | 11.1 | 91.0 | XRB | Be X-ray binary |
| GaiaDR3_4263591911398361472 | 289.926500 | -0.049900 | 11.5 | 85.0 | 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 | 11.8 | 150.0 | YSO | Pre-main sequence quadruple system (AaAb + BaBb) with circumbinary (BaBb) disk to eclipse AaAb |
| ASASSN-26bp | 225.854950 | -63.189410 | 12.5 | 119.0 | Star | Star Undergoing Deep Dimming Events |
| TCP J18265456-2719122 | 276.727333 | -27.320056 | 12.7 | 100.0 | Unknown | transient object |
| V4141 Sgr | 267.599257 | -19.895328 | 13.0 | 108.0 | Symbiotic star | symbiotic star |
| ngc 3783 | 174.757132 | -37.738611 | 13.3 | 144.0 | AGN | Nearby Seyfert 1 galaxy, active galactic nucleus, interesting for X-ray, high cadence data neeeded, potentially flaring |
| NGC 6814 | 295.669109 | -10.323641 | 13.7 | 81.0 | AGN | Long term monitored AGN |
| Nova Centauri 2025 | 219.340667 | -58.794667 | 14.0 | 124.0 | Nova | potential nova from ASASSN, V1935 Cen |
| AT2026ayt | 141.847458 | -32.008578 | 14.1 | 124.0 | Unknown | Optical transient, potential weird supernova |
| SN2026gzx | 178.487196 | -23.162647 | 14.3 | 157.0 | SN | SN Ia, bright nearby supernova |
| V5856 Sgr | 275.217710 | -28.370030 | 14.4 | 101.0 | Nova | CV and Nova outburts |
| AT 2025nlr | 227.013640 | -40.141550 | 14.8 | 136.0 | Nova | Astro-COLIBRI target |
| ASASSN-26af | 82.501958 | -66.724833 | 15.1 | 87.0 | Unknown | Undergoing Deep Dimming Events in the LMC |
| Nova Sagittarii 2025 no.4 | 270.969917 | -31.456667 | 15.1 | 105.0 | Nova | Nova Sgr 2025 No. 4 is TCP J18035290-3127298 is TCP J18035278-3127240 |
| Gaia19dbf | 178.699417 | -64.491850 | 15.3 | 121.0 | Unknown | Possibly a YSO |
| AR Sco | 245.447013 | -22.886218 | 15.7 | 129.0 | CV | White Dwarf pulsar |
| AT2025xvc | 85.526933 | -67.018517 | 16.0 | 88.0 | Unknown | possibile bright nova or CV in LMC from GOTO,TNS |
| ASASSN-25cd | 277.969917 | -28.807539 | 16.0 | 99.0 | Unknown | A Deep, Ongoing, Dipping Event |
| ZTF20abendxc | 281.224708 | -8.538111 | 16.1 | 94.0 | YSO | Possibly eruptive YSO |
| PMNJ0730-6602 | 112.706495 | -66.038578 | 16.3 | 99.0 | AGN | IAUZ Target |
| AT 2025acve | 270.700667 | -5.976583 | 16.7 | 105.0 | Unknown | Unclassified optical transient discovered by XOSS, potential microlensing event |
| Gaia24amo | 249.148921 | -53.749919 | 16.9 | 116.0 | Microlensing Event | candidate microlensing event, with the second peak |
| ASASSN-25fd | 187.851667 | -59.119028 | 17.3 | 127.0 | Nova | Nova in Crux, PNV J12312434-5907133 |
| SN2026afe | 99.860204 | -21.822386 | 17.3 | 88.0 | Unknown | Type SN Ia-pec |
| Gaia23cnm | 285.322920 | -18.717130 | 17.5 | 92.0 | Unknown | slow and long rise, possible microlensing or YSO |
| Gaia24csq | 286.710270 | -26.939590 | 17.6 | 91.0 | Unknown | potential slowly rising microlensing event |
Last week's total of images processed: 6368 (4855 with success).
Last week's targets observed:
| camera | target_names |
|---|---|
| Adonis_G2-1600 | Gaia24dja, TCrB, SN 2026dix |
| EEye_QHY268M | Gaia24csq, Q0957+561_A, AT2025acft |
| HAO68_C3-26000 | LSST_170094456357257301, SN 2026fvx, SN 2026dix |
| HAO68_G2-1600 | SN 2026fvx, AT2025abao, SN 2026dix, LS I +61 302, SN 2025ajmz, AT2025acft, TCrB, SN 2026fov, 8C0716_714 |
| Kryoneri-1.2_Andor-Zyla | Gaia16aoz, Q0957+561_A |
| LCOGT-CTIO-1m_4K | Gaia20aci, Gaia19ewo, OGLE-2026-BLG-0138, Gaia19ejl, Gaia20eqs, Gaia19eek, Gaia19bcm, Gaia19bld, Gaia20epj, Gaia20efl, Gaia19cmd, Gaia20fnr, Gaia20bgu, Gaia19ezg, Gaia20eei, AT2020xys, Gaia18cta, Gaia18dkp, Gaia19eca, Gaia20bof, Gaia23bth, Gaia20eqk, Gaia20cdp, Gaia20eom, Gaia19egk, Gaia20dwf, Gaia20aoq, Gaia19cnm, Gaia20cfp, Gaia20fkk, Gaia19ccl, Gaia20ecz, Gaia20agb |
| LCOGT-CTIO-40cm_QHY600M | AT2020xys |
| LCOGT-HO-2m_Muscat | V4641 Sgr, 4U 1957+11, V1055 Ori, MAXI J1659-152, V404_Cyg, Aql X-1 |
| LCOGT-HO-2m_Spectral | FO_Aqr, Gaia20dyl, 2S0114+65 |
| LCOGT-HO-40cm_SBIG6303 | Gaia20dyl |
| LCOGT-MCD-1m_4K | Gaia20cgb, Gaia20fup, Gaia19cvu, Gaia19cct, Gaia20cga, Gaia20cwd, Gaia20dxg, Gaia20efl, M1, Gaia20fnr, Gaia19duw, Gaia20asm, Gaia20eei, Gaia20fje, Gaia20een, Gaia20fig, Gaia19aau, Gaia20asj, Gaia19dke, Gaia20cyx, Gaia19ccn, Gaia20fcc, Gaia20dwf, Gaia19ccl, Gaia19dak, Gaia20atp, Gaia20bml, Gaia19cye, Gaia20agb |
| LCOGT-SAAO-1m_4K | Gaia20avm, Gaia20biy, Gaia20err, Gaia20aci, Gaia19ewo, Gaia19ezx, OGLE-2026-BLG-0138, Gaia20cvo, Gaia19ejl, Gaia20drf, Gaia20eqs, Gaia20bso, Gaia19bld, Gaia20cvu, Gaia20dxg, Gaia20cwd, Gaia20epj, Gaia19bcm, Gaia20efl, Gaia20fnr, Gaia20bgu, Gaia20bit, Gaia19ezg, Gaia20eei, Gaia20een, AT2020xys, Gaia18cta, Gaia18dkp, Gaia20bib, Gaia20bof, Gaia24amo, Gaia20eqk, Gaia20agl, Gaia19esp, Gaia19egk, Gaia20cdp, Gaia20eom, Gaia20ckk, Gaia20crc, Gaia20dwf, Gaia19cnm, Gaia20enh, AT2026fyc, Gaia20dft, Gaia20cfp, Gaia20fkk, Gaia20blb, Gaia19ccl, Gaia20ecz, Gaia18dif, Gaia20agb |
| LCOGT-SS-1m_4K | Gaia20bhj, Gaia20ayb, Gaia20biy, Gaia20err, Gaia20aci, Gaia19ezx, Gaia20biu, OGLE-2026-BLG-0138, Gaia20dyf, AT2026ayt, Gaia20eqs, Gaia20bso, Gaia19bld, Gaia20cwd, Gaia20dxg, Gaia20efl, Gaia20abf, Gaia20epj, Gaia19bcm, Gaia20fnr, Gaia20bgu, Gaia20bit, Gaia19ezg, Gaia20eei, Gaia20een, AT2020xys, Gaia18cta, Gaia18dkp, Gaia20bib, Gaia20bof, Gaia18ajz, Gaia20dun, Gaia24amo, Gaia20aya, Gaia20eqk, Gaia20agl, Gaia19esp, Gaia20eom, Gaia20cdp, Gaia19egk, Gaia20azf, Gaia20dwf, Gaia20ace, Gaia19cnm, Gaia20enh, Gaia20avb, Gaia20cfp, Gaia20fkk, Gaia20blb, Gaia19ccl, Gaia20bjo, Gaia20ecz, Gaia19dtd, Gaia18dif, Gaia20agb |
| LCOGT-SS-2m_Muscat | XTE J1550-564, Cen X-4, MAXI J1803-298, GX 339-4, GRO J1719-24, MAXI J0637-430 |
| LCOGT-SS-2m_Spectral | FO_Aqr |
| MOLETAI-35cm_CCD4710 | LS I +61 302 |
| OAUJ-CDK500_U47 | SN 2026dix |
| Ostrowik-60-cm_SOFIA_E2V | Gaia21cvd |
| PIWNICE90_C4-16000EC | EECep, 8C0716_714 |
| PROMPT5_Apogee | AT2026ayt, AT2025sqe |
| PROMPT6_FLI | AT2026ayt, Gaia20agb |
| ROAD40_QHY600M | ASASSN-25bv, TT Ori, OY Mon, Gaia23dnm, EX Lup, ASASSN-24fw, T Ori, Gaia24dhn, V1787 Ori, HD 312919, TCrB, FU Ori, Gaia24ccy, UX Ori, HD 98800, ASASSN-21js, V1117 Her, TCP J18265456-2719122, TX Ori, CD-34 11794, Gaia19eyy, ASASSN-25db, ASASSN-21qj, Gaia23cpd |
| RRRT_SBIG-STX16803 | AT2026cex, SN 2026fvx |
| SUTO-Otivar_ASI1600MM | T Ori, V2894 Cyg, LS I +61 302, TCrB, 4U2206+54 |
| Seestar-S50 | SN 2026fvx, 8C0716_714 |
| TJO_MEIA3 | SN2024afyu, TCrB, Gaia24ayd, EECep, Gaia24aup, AM_Her |
| TTT_QHY600MPCIE | 2026chm |
| ZAO_G2-1600 | SN 2026fvx |
Last week's fits uploads score (sorted by count)
| observatory-user | count |
|---|---|
| Franz-Josef Hambsch (ROAD40_QHY600M) | 1142 |
| Etienne Bachelet (LCOGT-MCD-1m_4K) | 945 |
| Etienne Bachelet (LCOGT-SAAO-1m_4K) | 534 |
| Nada Ihanec (LCOGT-SAAO-1m_4K) | 457 |
| Etienne Bachelet (LCOGT-SS-1m_4K) | 398 |
| Krzysztof Rybicki (LCOGT-SAAO-1m_4K) | 303 |
| Krzysztof Rybicki (LCOGT-SS-1m_4K) | 260 |
| Nada Ihanec (LCOGT-SS-1m_4K) | 230 |
| Etienne Bachelet (LCOGT-CTIO-1m_4K) | 226 |
| Joysankar Majumdar (LCOGT-CTIO-1m_4K) | 158 |
| Jan Kåre Trandem Qvam (HAO68_G2-1600) | 153 |
| Krzysztof Rybicki (LCOGT-CTIO-1m_4K) | 147 |
| Agnieszka Gurgul (PIWNICE90_C4-16000EC) | 141 |
| Joysankar Majumdar (LCOGT-SAAO-1m_4K) | 128 |
| Nada Ihanec (LCOGT-MCD-1m_4K) | 112 |
| Josep Manel Carrasco (TJO_MEIA3) | 110 |
| Joysankar Majumdar (LCOGT-SS-1m_4K) | 108 |
| Marcin Michalski (Seestar-S50) | 82 |
| Sjoerd Dufoer (EEye_QHY268M) | 80 |
| Lukasz Wyrzykowski (LCOGT-HO-2m_Spectral) | 59 |
| Rachel Street (LCOGT-SAAO-1m_4K) | 50 |
| Staszek Zola (OAUJ-CDK500_U47) | 48 |
| Krzysztof Rybicki (LCOGT-MCD-1m_4K) | 48 |
| Nada Ihanec (LCOGT-CTIO-1m_4K) | 47 |
| Rachel Street (LCOGT-CTIO-1m_4K) | 46 |
| Jacek Drazkowski (Seestar-S50) | 42 |
| Rachel Street (LCOGT-SS-1m_4K) | 42 |
| Justas Zdanavicius (MOLETAI-35cm_CCD4710) | 39 |
| Adam Popowicz (SUTO-Otivar_ASI1600MM) | 32 |
| Lukasz Wyrzykowski (LCOGT-MCD-1m_4K) | 27 |
| Fraser Lewis (LCOGT-SS-2m_Muscat) | 24 |
| Fraser Lewis (LCOGT-HO-2m_Muscat) | 24 |
| Lukasz Wyrzykowski (LCOGT-SS-2m_Spectral) | 21 |
| Staszek Zola (RRRT_SBIG-STX16803) | 18 |
| Charles Galdies (ZAO_G2-1600) | 17 |
| Staszek Zola (PROMPT5_Apogee) | 15 |
| Franky Dubois (Adonis_G2-1600) | 15 |
| Evangelos Gkiokas (Kryoneri-1.2_Andor-Zyla) | 10 |
| Staszek Zola (PROMPT6_FLI) | 5 |
| Lukasz Wyrzykowski (Ostrowik-60-cm_SOFIA_E2V) | 4 |
| Mauritz Wicker (LCOGT-SS-1m_4K) | 3 |
| Mauritz Wicker (LCOGT-CTIO-1m_4K) | 3 |
| Mauritz Wicker (LCOGT-SAAO-1m_4K) | 3 |
| Jan Kåre Trandem Qvam (HAO68_C3-26000) | 3 |
| Joysankar Majumdar (LCOGT-CTIO-40cm_QHY600M) | 2 |
| Fraser Lewis (LCOGT-HO-40cm_SBIG6303) | 2 |
| Eduardo Concepcion (TTT_QHY600MPCIE) | 1 |
| Kajetan Siennicki (Seestar-S50) | 1 |
Top 5 data uploaders!
| name | count |
|---|---|
| Etienne Bachelet | 2103 |
| Franz-Josef Hambsch | 1142 |
| Nada Ihanec | 846 |
| Krzysztof Rybicki | 758 |
| Joysankar Majumdar | 396 |
Clear skies!
Your BHTOM Team
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