BHTOM Targets for 04 May, 2026
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wyrz...@gmail.com
May 4, 2026, 8:40:07 AMMay 4
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Hello,
Top 5 data uploaders!
Clear skies!
Your BHTOM Team
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Greetings from the BHTOM Automated Newsletter!
Please note the main server name change from bh-tom2.astrolabs.pl to bh-tom2.astrouw.edu.pl. The alias bhtom.space is still valid.
As of 2026-05-04 12:25:56.089330+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 |
|---|---|---|---|---|---|---|
| AT2026kis | 315.044821 | -32.284722 | 16.6 | 95.0 | Unknown | rising bright transient; 16.5 mag in GOTO-L and ATLAS-o band |
| SN2026kmo | 146.675146 | -14.867561 | 17.8 | 109.0 | SN | Young Type II supernova |
| AT2026lau | 164.921043 | -10.693675 | 100.0 | 125.0 | Unknown | transient optical event near the galactic core |
| SN_2026jlm | 215.416237 | 13.229544 | 100.0 | 150.0 | SN | Nearby Supernova Type Ia |
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 | 7.5 | 134.0 | Nova | recurent nova predicted to explode 2024/2025 |
| 1H1936+541 (BD+53 2262) | 293.217949 | 53.879297 | 10.8 | 87.0 | XRB | optical counterpart of the Be X-Ray Binary |
| V1413 Aql | 285.945155 | 16.438048 | 11.2 | 108.0 | Symbiotic star | known symbiotic star for regular monitoring |
| TCP J21220926+4926242 | 320.537548 | 49.440144 | 11.8 | 72.0 | Unknown | Bright FUor or EXor, or in between. |
| AM_Her | 274.055228 | 49.867989 | 11.9 | 99.0 | CV | Target for joint optical-radio observations |
| V1117 Her | 249.776779 | 9.798698 | 12.4 | 142.0 | Unknown | PMS star, Herbig Ae star |
| SN 2026fvx | 183.742221 | 63.787892 | 13.6 | 95.0 | SN | nearby supernova Type Ia |
| SAXJ2103.5+4545 | 315.898792 | 45.751547 | 13.7 | 75.0 | XRB | Be X-ray binary |
| KS1947+300 | 297.397850 | 30.208827 | 13.8 | 93.0 | XRB | Be X-ray binary |
| GROJ2058+42 | 314.698071 | 41.776995 | 14.0 | 77.0 | XRB | Be X-ray binary |
| Gaia21fji | 315.992250 | 50.244500 | 14.3 | 75.0 | YSO | Optical monitoring of Gaia- and ZTF-alerted candidate eruptive YSOs |
| Mrk 817 | 219.092017 | 58.794299 | 14.6 | 105.0 | Unknown | Seyfert 1 AGN |
| Mrk 841 | 226.004963 | 10.437732 | 14.8 | 153.0 | AGN | changinglook AGN |
| SN 2026kid | 228.988442 | 56.308914 | 15.1 | 108.0 | SN | Closeby Type II supernova at 14 Mpc. Strong CSM interaction |
| AT2025sqe | 288.715125 | 8.001778 | 15.2 | 109.0 | Unknown | slow galactic very red transient |
| SN 2026kie | 163.152190 | 22.931718 | 15.5 | 111.0 | SN | Astro-COLIBRI target |
| NGC5683-Seyfert | 218.718578 | 48.661870 | 15.6 | 115.0 | AGN | active nucleus of a nearby galaxy for frequent monitoring |
| AT2026ava | 316.651371 | 14.521939 | 15.7 | 81.0 | Unknown | AGN or TDE, Mag (r) is 16.88 on Jan 20, 2026 |
| ZTF18aarippg | 217.566838 | 23.062372 | 16.2 | 141.0 | QSO | Tick-Tok possibly merging Super Massive Black Hole binary |
| Gaia4323024741104637568 | 292.501025 | 17.933682 | 16.4 | 102.0 | Unknown | Possibly eruptive YSO which is approaching to the quiescence |
| SN 2026dix | 177.655950 | 55.353589 | 16.7 | 100.0 | Unknown | Closeby IIb supernova |
| SN 2026fjc | 195.179418 | 37.310053 | 16.8 | 122.0 | SN | SN Ia (according to TNS) |
| AT2025acft | 295.939833 | 40.367889 | 16.9 | 91.0 | Microlensing Event | Candidate long microlensing event from Chinese KATS survey, KATS25V002 |
| Q0957+561_A | 150.336216 | 55.898776 | 17.0 | 87.0 | QSO | firstly confirmed lensed quasar (double image), image A (top) |
| Gaia16aoz | 162.115140 | 71.726660 | 17.1 | 84.0 | QSO | QSO with a long-term and short-term variability |
| AT2023zgo | 132.228746 | 31.783561 | 17.4 | 83.0 | AGN | Bowen Fluorescence Flare, ePESSTO+ target |
| AT2026bti | 210.693421 | 24.826742 | 17.5 | 138.0 | SN | optical transient |
| SN 2026gzf | 149.928633 | 0.418439 | 17.5 | 108.0 | SN | SN 2026gzf (EP260321a), a type Ic-BL SN and the target of AAVSO observation campaign 920, is predicted to undergo CSM interaction with ejecta from suspected prior supernova imposter event AT 2018mtl. |
| SN2024afyu | 258.429383 | 7.625256 | 17.8 | 136.0 | SN | Interesting long-term Supernova |
| SDSSJ094533.99+100950.1 | 146.391622 | 10.163917 | 17.8 | 102.0 | QSO | Long term variable quasar for monitoring |
| name | ra | dec | mag_last | sun_separation | classification | description |
|---|---|---|---|---|---|---|
| HD54740 | 107.409460 | -11.037909 | 11.2 | 71.0 | Variable star-other | variable star with period 0.856265462d |
| HD 98800 | 170.521620 | -24.777768 | 11.4 | 132.0 | YSO | Pre-main sequence quadruple system (AaAb + BaBb) with circumbinary (BaBb) disk to eclipse AaAb |
| GaiaDR3_4263591911398361472 | 289.926500 | -0.049900 | 11.4 | 110.0 | 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) |
| ASASSN-26bp | 225.854950 | -63.189410 | 12.4 | 133.0 | Star | Star Undergoing Deep Dimming Events |
| V4141 Sgr | 267.599257 | -19.895328 | 13.0 | 136.0 | Symbiotic star | symbiotic star |
| NGC 6814 | 295.669109 | -10.323641 | 13.3 | 107.0 | AGN | Long term monitored AGN |
| ngc 3783 | 174.757132 | -37.738611 | 13.5 | 134.0 | AGN | Nearby Seyfert 1 galaxy, active galactic nucleus, interesting for X-ray, high cadence data neeeded, potentially flaring |
| AT 2025nlr | 227.013640 | -40.141550 | 13.9 | 155.0 | Nova | Astro-COLIBRI target |
| Nova Centauri 2025 | 219.340667 | -58.794667 | 14.1 | 137.0 | Nova | potential nova from ASASSN, V1935 Cen |
| V5856 Sgr | 275.217710 | -28.370030 | 14.1 | 129.0 | Nova | CV and Nova outburts |
| AT2026ayt | 141.847458 | -32.008578 | 14.2 | 107.0 | SN | Type II SN |
| IRAS 23226-3843 | 351.350833 | -38.446978 | 14.3 | 71.0 | AGN | changinglook AGN |
| AR Sco | 245.447013 | -22.886218 | 14.5 | 156.0 | CV | White Dwarf pulsar |
| SN2026gzx | 178.487196 | -23.162647 | 14.9 | 139.0 | SN | SN Ia, bright nearby supernova |
| Nova Sagittarii 2025 no.4 | 270.969917 | -31.456667 | 15.1 | 132.0 | Nova | Nova Sgr 2025 No. 4 is TCP J18035290-3127298 is TCP J18035278-3127240 |
| ASASSN-26af | 82.501958 | -66.724833 | 15.1 | 88.0 | Unknown | Undergoing Deep Dimming Events in the LMC |
| Gaia19dbf | 178.699417 | -64.491850 | 15.4 | 124.0 | Unknown | Possibly a YSO |
| AT 2025acve | 270.700667 | -5.976583 | 15.7 | 130.0 | Unknown | Unclassified optical transient discovered by XOSS, potential microlensing event |
| ASASSN-26cp | 242.076625 | -64.185778 | 16.0 | 130.0 | Microlensing Event | Possible Microlensing Event, matches to GAIA |
| ZTF20abendxc | 281.224708 | -8.538111 | 16.1 | 121.0 | YSO | Possibly eruptive YSO |
| ASASSN-25cd | 277.969917 | -28.807539 | 16.2 | 126.0 | Unknown | A Deep, Ongoing, Dipping Event |
| AT2025xvc | 85.526933 | -67.018517 | 16.3 | 89.0 | Nova | possibile bright nova or CV in LMC from GOTO,TNS |
| CTCVJ2056-3014 | 314.217286 | -30.244198 | 16.3 | 95.0 | CV | fast spinning WD in a CV |
| PMNJ0730-6602 | 112.706495 | -66.038578 | 16.4 | 97.0 | AGN | IAUZ Target |
| Gaia24amo | 249.148921 | -53.749919 | 17.0 | 136.0 | Microlensing Event | candidate microlensing event, with the second peak |
| Gaia23cnm | 285.322920 | -18.717130 | 17.2 | 119.0 | Unknown | slow and long rise, possible microlensing or YSO |
| Gaia24csq | 286.710270 | -26.939590 | 17.2 | 118.0 | Unknown | potential slowly rising microlensing event |
| ASASSN-25fd | 187.851667 | -59.119028 | 17.4 | 130.0 | Nova | Nova in Crux, PNV J12312434-5907133 |
| AT2023aece | 238.433929 | -14.738814 | 17.9 | 163.0 | AGN | nuclear transient with an extremely long lived, rising lightcurve. |
Last week's total of images processed: 52406 (26399 with success).
Last week's targets observed:
| camera | target_names |
|---|---|
| Adonis_G2-1600 | SN 2026dix, AM_Her, TabbysStar, SN 2026fvx, TCrB |
| AndromedaC14_QHY600M | SN 2026fvx, SN 2026fov |
| AsiagoAO-0.67_G4-16000 | SN 2026kid |
| EEye_QHY268M | Gaia24csq, Q0957+561_A, AT2025acft, AT 2025acve |
| HAO68_G2-1600 | SN 2026dix, 8C0716_714, SN 2026fvx, SN 2025aico, AT2025acft, TCrB, SN 2026kid, AT2025abao, ZTF18aarippg |
| Kryoneri-1.2_Andor-Zyla | SN 2026kie, AT2023zgo, AT 2025acve, ZTF20abendxc, TDE2025aljd |
| LCOGT-CTIO-1m_4K | OGLE-2026-BLG-0128, AT2026kis, AT2020xys |
| LCOGT-CTIO-40cm_QHY600M | OJ_287 |
| LCOGT-HO-2m_Muscat | QZ Vul, MAXI J1910-057, MAXI J1807+132, GRO J1719-24, MAXI J1803-298, XTE J1728-295, MAXI J1820+070, V406 Vul, KV UMa, V404_Cyg |
| LCOGT-SAAO-1m_4K | AT2026lau, ASASSN-26cm, ASASSN-26cp, OGLE-2026-BLG-0128, AT2020xys |
| LCOGT-SAAO-40cm_QHY600M | OJ_287 |
| LCOGT-SS-1m_4K | OGLE-2026-BLG-0128, AT2026ayt, AT2020xys |
| LCOGT-SS-2m_Muscat | 4U 1957+11, GX 339-4, Aql X-1, MAXI J0637-430, MAXI J1807+132, XTE J1650-500, V4641 Sgr, V1055 Ori, MAXI J0556-332, XTE J1550-564 |
| LCOGT-Teide-40cm_QHY600M | OJ_287 |
| OAUJ-CDK500_U47 | SN 2026dix, AT2025mau, ASASSN-24fw, SN 2026fvx, TOI-3714, AT2024kwu, AT2025acft, AT2026cex, TCrB, SN 2026kid, Gaia24azc, AT2025abao, SN 2026fjc, SN2024afyu |
| Ostrowik-60-cm_SOFIA_E2V | 8C0716_714, RZ_LMi, ER_UMa, 2MASS_J22481357+6400230, BO_Lyn, SN 2026fvx, 1RXS J1525069-032647, HD79889 |
| PROMPT-MO-1_Apogee | SN2026gzx, ASASSN-26bl |
| PROMPT5_Apogee | SN2026gzx, ASASSN-26bl |
| ROAD40_FLI-KAF-16803 | FO_Aqr |
| ROAD40_QHY600M | FO_Aqr |
| ROADC14_QHY600M | ASASSN-25ec, TCP J07032576-1241401, V360 Leo, MASTER OT J142023.47-485540.0, ASASSN-25dc |
| RRRT_SBIG-STX16803 | SN 2026fvx |
| SHO_ASI6200MM-Pro | Gaia21avq, Gaia21bpe, PGC2062027, Gaia20awf, Gaia21ebj, ILTJ125901.87+280703.3 |
| SOAB_ZWO-ASI2600MM | 8C0716_714, AM_Her, SDSSJ094533.99+100950.1, AT2026ava, ZTF18aarippg, LS I +61 302, AT2025sqe, SN 2026fvx, AT2025acft, TCrB, 4U0115+63, SN 2026gzf, SN2024afyu, AT 2025acve, EECep, SN 2026kid, TDE2025aljd, Q0957+561_A, SN 2026fov, TCP J21220926+4926242, Mrk 841, Mrk 817 |
| SUTO-Otivar_ASI1600MM | TCrB, 1H2202+501 (BD+49 3718) |
| Salerno_Observatory_FLI | 8C0716_714, Gaia21fji, IGRJ06074+2205, Gaia24ayd, SN 2026fvx, GROJ2058+42, KS1947+300, SAXJ2103.5+4545, AT2025acft, TCrB, SN 2026kid, V1413 Aql, Mrk 841, Mrk 817 |
| Seestar-S30 | 8C0716_714, BL_Lac |
| Seestar-S50 | 8C0716_714, AM_Her, SN_2026jlm, BL_Lac, SN 2026fvx, SN 2026kid |
| UwB_SBIG-4040 | 8C0716_714, AM_Her, Gaia DR3 2207274751021560576, V1117 Her, SN 2026fvx, AT2025acft, TCrB, Q0957+561_A |
| ZAO_G2-1600 | TCrB, AM_Her |
Last week's fits uploads score (sorted by count)
| observatory-user | count |
|---|---|
| Franz-Josef Hambsch (ROADC14_QHY600M) | 18321 |
| Franz-Josef Hambsch (ROAD40_QHY600M) | 17544 |
| Franz-Josef Hambsch (ROAD40_FLI-KAF-16803) | 12172 |
| Staszek Zola (OAUJ-CDK500_U47) | 770 |
| Valerio Bozza (Salerno_Observatory_FLI) | 623 |
| Sebastian Kurowski (SOAB_ZWO-ASI2600MM) | 330 |
| Charles Galdies (ZAO_G2-1600) | 281 |
| Kajetan Siennicki (Ostrowik-60-cm_SOFIA_E2V) | 250 |
| Weronika Skrobacz (Seestar-S50) | 249 |
| Jan Kåre Trandem Qvam (HAO68_G2-1600) | 171 |
| Rachel Street (LCOGT-CTIO-1m_4K) | 168 |
| Przemyslaw J. Mikolajczyk (LCOGT-CTIO-1m_4K) | 156 |
| Franz-Josef Hambsch (AndromedaC14_QHY600M) | 144 |
| Przemyslaw J. Mikolajczyk (LCOGT-SAAO-1m_4K) | 121 |
| Marcin Michalski (Seestar-S50) | 102 |
| Evangelos Gkiokas (Kryoneri-1.2_Andor-Zyla) | 100 |
| Przemyslaw J. Mikolajczyk (LCOGT-SS-1m_4K) | 80 |
| Rachel Street (LCOGT-SAAO-1m_4K) | 60 |
| Jacek Drazkowski (Seestar-S30) | 59 |
| Fraser Lewis (LCOGT-HO-2m_Muscat) | 56 |
| Jacek Drazkowski (Seestar-S50) | 56 |
| Rachel Street (LCOGT-SS-1m_4K) | 48 |
| Fraser Lewis (LCOGT-SS-2m_Muscat) | 44 |
| Wojciech Burzyński (UwB_SBIG-4040) | 41 |
| Franky Dubois (Adonis_G2-1600) | 34 |
| Lukasz Wyrzykowski (Ostrowik-60-cm_SOFIA_E2V) | 27 |
| Yen-Hsing Lin (SHO_ASI6200MM-Pro) | 20 |
| Lukasz Wyrzykowski (Seestar-S50) | 18 |
| Adam Popowicz (SUTO-Otivar_ASI1600MM) | 14 |
| Sjoerd Dufoer (EEye_QHY268M) | 14 |
| Krzysztof Słowik (Seestar-S50) | 12 |
| Jerzy Surma (Seestar-S50) | 12 |
| Staszek Zola (PROMPT5_Apogee) | 7 |
| Mauritz Wicker (LCOGT-SAAO-1m_4K) | 6 |
| Staszek Zola (PROMPT-MO-1_Apogee) | 5 |
| Joysankar Majumdar (LCOGT-SAAO-1m_4K) | 3 |
| Joysankar Majumdar (LCOGT-SS-1m_4K) | 3 |
| Joysankar Majumdar (LCOGT-CTIO-1m_4K) | 3 |
| Andrea Reguitti (AsiagoAO-0.67_G4-16000) | 2 |
| Staszek Zola (RRRT_SBIG-STX16803) | 2 |
| Lukasz Wyrzykowski (LCOGT-SAAO-40cm_QHY600M) | 1 |
| Lukasz Wyrzykowski (LCOGT-Teide-40cm_QHY600M) | 1 |
| Lukasz Wyrzykowski (LCOGT-CTIO-40cm_QHY600M) | 1 |
Top 5 data uploaders!
| name | count |
|---|---|
| Franz-Josef Hambsch | 48430 |
| Staszek Zola | 784 |
| Valerio Bozza | 623 |
| Przemyslaw J. Mikolajczyk | 357 |
| Sebastian Kurowski | 330 |
Clear skies!
Your BHTOM Team
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