BHTOM Targets for 11 May, 2026
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wyrz...@gmail.com
May 11, 2026, 6:55:21 AM (10 days ago) May 11
to bhtomt...@googlegroups.com
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 2026-05-11 10:48:13.009525+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 |
|---|---|---|---|---|---|---|
| SN 2026gwx | 172.045321 | 25.656667 | 16.8 | 111.0 | SN | New nearby SN Ib with a redshift of 0.009 |
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 | 7.4 | 135.0 | Nova | recurent nova predicted to explode 2024/2025 |
| V1413 Aql | 285.945155 | 16.438048 | 10.4 | 113.0 | Symbiotic star | known symbiotic star for regular monitoring |
| 1H1936+541 (BD+53 2262) | 293.217949 | 53.879297 | 11.0 | 89.0 | XRB | optical counterpart of the Be X-Ray Binary |
| TCP J21220926+4926242 | 320.537548 | 49.440144 | 12.0 | 75.0 | Unknown | Bright FUor or EXor, or in between. |
| V1117 Her | 249.776779 | 9.798698 | 12.6 | 145.0 | Unknown | PMS star, Herbig Ae star |
| AM_Her | 274.055228 | 49.867989 | 12.7 | 101.0 | CV | Target for joint optical-radio observations |
| SAXJ2103.5+4545 | 315.898792 | 45.751547 | 13.8 | 79.0 | XRB | Be X-ray binary |
| KS1947+300 | 297.397850 | 30.208827 | 13.8 | 98.0 | XRB | Be X-ray binary |
| GROJ2058+42 | 314.698071 | 41.776995 | 14.0 | 80.0 | XRB | Be X-ray binary |
| SN 2026fvx | 183.742221 | 63.787892 | 14.1 | 92.0 | SN | nearby supernova Type Ia |
| Gaia21fji | 315.992250 | 50.244500 | 14.3 | 78.0 | YSO | Optical monitoring of Gaia- and ZTF-alerted candidate eruptive YSOs |
| Mrk 841 | 226.004963 | 10.437732 | 14.4 | 152.0 | AGN | changinglook AGN |
| IGRJ21343+4738 | 323.584883 | 47.633391 | 14.5 | 73.0 | XRB | Be X-ray binary |
| Mrk 817 | 219.092017 | 58.794299 | 14.7 | 103.0 | Unknown | Seyfert 1 AGN |
| SN 2026kid | 228.988442 | 56.308914 | 15.0 | 106.0 | SN | Closeby Type II supernova at 14 Mpc. Strong CSM interaction |
| SN 2026dix | 177.655950 | 55.353589 | 15.0 | 96.0 | Unknown | Closeby IIb supernova |
| AT2025acft | 295.939833 | 40.367889 | 15.1 | 94.0 | Microlensing Event | Candidate long microlensing event from Chinese KATS survey, KATS25V002 |
| SN 2026kie | 163.152190 | 22.931718 | 15.4 | 105.0 | SN | Astro-COLIBRI target |
| AT2025sqe | 288.715125 | 8.001778 | 15.5 | 114.0 | Unknown | slow galactic very red transient |
| NGC5683-Seyfert | 218.718578 | 48.661870 | 15.5 | 113.0 | AGN | active nucleus of a nearby galaxy for frequent monitoring |
| AT2026ava | 316.651371 | 14.521939 | 15.7 | 87.0 | Unknown | AGN or TDE, Mag (r) is 16.88 on Jan 20, 2026 |
| ZTF18aarippg | 217.566838 | 23.062372 | 16.2 | 138.0 | QSO | Tick-Tok possibly merging Super Massive Black Hole binary |
| SN_2026jlm | 215.416237 | 13.229544 | 16.4 | 147.0 | SN | Nearby Supernova Type Ia |
| Gaia4323024741104637568 | 292.501025 | 17.933682 | 16.4 | 107.0 | Unknown | Possibly eruptive YSO which is approaching to the quiescence |
| SN 2026fjc | 195.179418 | 37.310053 | 16.8 | 117.0 | SN | SN Ia (according to TNS) |
| Q0957+561_A | 150.336216 | 55.898776 | 17.0 | 82.0 | QSO | firstly confirmed lensed quasar (double image), image A (top) |
| Gaia16aoz | 162.115140 | 71.726660 | 17.2 | 80.0 | QSO | QSO with a long-term and short-term variability |
| Gaia23bab | 286.111170 | 4.399270 | 17.2 | 118.0 | Unknown | repeated outburst in a candidate YSO |
| AT2026bti | 210.693421 | 24.826742 | 17.4 | 134.0 | SN | optical transient |
| SN2024afyu | 258.429383 | 7.625256 | 17.5 | 140.0 | SN | Interesting long-term Supernova |
| name | ra | dec | mag_last | sun_separation | classification | description |
|---|---|---|---|---|---|---|
| GaiaDR3_4263591911398361472 | 289.926500 | -0.049900 | 10.4 | 116.0 | 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 | 11.1 | 127.0 | YSO | Pre-main sequence quadruple system (AaAb + BaBb) with circumbinary (BaBb) disk to eclipse AaAb |
| ASASSN-26bp | 225.854950 | -63.189410 | 12.4 | 135.0 | Star | Star Undergoing Deep Dimming Events |
| V4141 Sgr | 267.599257 | -19.895328 | 13.0 | 142.0 | Symbiotic star | symbiotic star |
| NGC 6814 | 295.669109 | -10.323641 | 13.5 | 114.0 | AGN | Long term monitored AGN |
| V5856 Sgr | 275.217710 | -28.370030 | 14.1 | 135.0 | Nova | CV and Nova outburts |
| ngc 3783 | 174.757132 | -37.738611 | 14.1 | 130.0 | AGN | Nearby Seyfert 1 galaxy, active galactic nucleus, interesting for X-ray, high cadence data neeeded, potentially flaring |
| AR Sco | 245.447013 | -22.886218 | 14.2 | 163.0 | CV | White Dwarf pulsar |
| IRAS 23226-3843 | 351.350833 | -38.446978 | 14.3 | 77.0 | AGN | changinglook AGN |
| Nova Centauri 2025 | 219.340667 | -58.794667 | 14.3 | 139.0 | Nova | potential nova from ASASSN, V1935 Cen |
| AT 2025nlr | 227.013640 | -40.141550 | 14.7 | 158.0 | Nova | Astro-COLIBRI target |
| Nova Sagittarii 2025 no.4 | 270.969917 | -31.456667 | 15.1 | 139.0 | Nova | Nova Sgr 2025 No. 4 is TCP J18035290-3127298 is TCP J18035278-3127240 |
| AT2026ayt | 141.847458 | -32.008578 | 15.1 | 103.0 | SN | Type II SN |
| ASASSN-26af | 82.501958 | -66.724833 | 15.2 | 88.0 | Unknown | Undergoing Deep Dimming Events in the LMC |
| Gaia19dbf | 178.699417 | -64.491850 | 15.4 | 123.0 | Unknown | Possibly a YSO |
| SN2026gzx | 178.487196 | -23.162647 | 15.4 | 134.0 | SN | SN Ia, bright nearby supernova |
| CTCVJ2056-3014 | 314.217286 | -30.244198 | 15.8 | 102.0 | CV | fast spinning WD in a CV |
| ZTF20abendxc | 281.224708 | -8.538111 | 16.1 | 127.0 | YSO | Possibly eruptive YSO |
| ASASSN-25cd | 277.969917 | -28.807539 | 16.3 | 133.0 | Unknown | A Deep, Ongoing, Dipping Event |
| PMNJ0730-6602 | 112.706495 | -66.038578 | 16.3 | 97.0 | AGN | IAUZ Target |
| ASASSN-26cp | 242.076625 | -64.185778 | 16.4 | 133.0 | Microlensing Event | Possible Microlensing Event, matches to GAIA |
| AT2025xvc | 85.526933 | -67.018517 | 16.5 | 89.0 | Nova | possibile bright nova or CV in LMC from GOTO,TNS |
| AT2026kis | 315.044821 | -32.284722 | 16.8 | 102.0 | Unknown | rising bright transient; 16.5 mag in GOTO-L and ATLAS-o band |
| Gaia24amo | 249.148921 | -53.749919 | 16.9 | 140.0 | Microlensing Event | candidate microlensing event, with the second peak |
| AT2026lau | 164.921043 | -10.693675 | 16.9 | 119.0 | Unknown | transient optical event near the galactic core |
| ASASSN-25fd | 187.851667 | -59.119028 | 17.2 | 130.0 | Nova | Nova in Crux, PNV J12312434-5907133 |
| Gaia24csq | 286.710270 | -26.939590 | 17.2 | 125.0 | Unknown | potential slowly rising microlensing event |
| AT 2025acve | 270.700667 | -5.976583 | 17.3 | 136.0 | Unknown | Unclassified optical transient discovered by XOSS, potential microlensing event |
| Gaia23cnm | 285.322920 | -18.717130 | 17.4 | 126.0 | Unknown | slow and long rise, possible microlensing or YSO |
Last week's total of images processed: 19598 (17012 with success).
Last week's targets observed:
| camera | target_names |
|---|---|
| Adonis_G2-1600 | AM_Her, TabbysStar, TCrB, SN 2026dix, Gaia24azc, SN 2026fvx, Gaia24dfv, Gaia24ayd |
| AndromedaC14_QHY600M | SN 2026fov, TCrB, AT2025acft, SN 2026fvx, LS I +61 302 |
| AsiagoAO-0.67_G4-16000 | TCrB, SN 2026gzf |
| EEye_QHY268M | Q0957+561_A, AT 2025acve, Gaia24csq, AT2025acft |
| HAO68_G2-1600 | AT2025abao, SN 2026kid, SN 2026dix, SN 2026fvx |
| Kryoneri-1.2_Andor-Zyla | TCrB, SN 2026dix, SN 2026kie, SN 2026fjc, Q0957+561_A, NGC 6814, AT2023zgo, ZTF18aarippg, Gaia16aoz, SN 2026fvx, AT 2025acve |
| LCOGT-CTIO-1m_4K | ASASSN-26cp, OGLE-2026-BLG-0128, Gaia20ehk, OGLE-2026-BLG-0138, AT2026kis, AT2026ayt |
| LCOGT-CTIO-40cm_QHY600M | OJ_287 |
| LCOGT-HO-2m_Muscat | Cen X-4, V4641 Sgr, V404_Cyg, 4U 1957+11, V1055 Ori, XTE J1728-295, V518 Per, GRO J1719-24, Aql X-1, MAXI J1803-298, MAXI J1659-152, KV UMa, QZ Vul, MAXI J1820+070, MAXI J0556-332, V1037Cas, MAXI J1807+132, MAXI J1910-057, V406 Vul |
| LCOGT-HO-40cm_QHY600M | OJ_287 |
| LCOGT-MCD-40cm_QHY600M | OJ_287 |
| LCOGT-SAAO-1m_4K | AT2026lau, OGLE-2026-BLG-0128, Gaia20ehk, OGLE-2026-BLG-0138, AT2026ayt |
| LCOGT-SAAO-40cm_QHY600M | OJ_287 |
| LCOGT-SS-1m_4K | SN2026kmo, OGLE-2026-BLG-0128, Gaia20ehk, OGLE-2026-BLG-0138, AT2026ayt |
| LCOGT-SS-2m_Muscat | V1055 Ori, XTE J1728-295, XTE J1550-564, Aql X-1, Cen X-4, GRO J1719-24, XTE J1650-500, MAXI J0637-430, MAXI J0556-332, GX 339-4, MAXI J1803-298, V4641 Sgr, 4U 1957+11 |
| LCOGT-SS-40cm_QHY600M | EX Lup |
| LCOGT-Teide-1m_4K | ASASSN-26cm |
| LCOGT-Teide-40cm_QHY600M | OJ_287 |
| MOLETAI-80cm_SOPHIA-4096B | 8C0716_714, ZTF18aarippg |
| OAUJ-CDK500_U47 | SN 2026fov, SN 2026dix, AT2025mau, AT2025sqe, AT2026cex |
| PIWNICE90_C4-16000EC | Gaia22efa, TCrB, Gaia22awp, Gaia21fji, ZTF18aarippg, Gaia24bux, LS I +61 302, SN 2025aico, Gaia24dfc, 8C0716_714, Gaia24cjg |
| PROMPT-MO-1_Apogee | ASASSN-26bl, SN2026gzx, AT2026ayt |
| PROMPT5_Apogee | AT2026ayt |
| ROAD40_QHY600M | T Ori, V1117 Her, ASASSN-25db, FO_Aqr, Gaia19eyy, ASASSN-25bv, Gaia23dnm, WX Cen, FU Ori, Gaia24amo, TCP J18265456-2719122, Gaia23cpd, CD-34 11794, TX Ori, EX Lup, Gaia24dhn, OY Mon, TCrB, Gaia24ccy, ASASSN-21js, UX Ori, ASASSN-24fw, ASASSN-21qj, HD 98800, V1787 Ori, HD 312919, TT Ori |
| ROADC14_QHY600M | V1413 Aql, Nova Velorum 2025, ASASSN-26bp, AT 2025nlr, Gaia20ehk, 2MASS J07233213+0926393, Nova Centauri 2025, ASASSN-26cm, Nova Sagittarii 2025 no.4, V5856 Sgr, ASASSN-23ht, MASTER OT J142023.47-485540.0, GaiaDR3_4263591911398361472, V4141 Sgr, ASASSN-25cy, ASASSN-26cp, V1280 Sco, AR_Pav, TDE2025aarm |
| SRO-T24_FLI-PL09000 | SN 2026gzf |
| SUTO-Otivar_ASI1600MM | Gaia24csr, Gaia23bzg, Gaia21fji, Gaia23ahl, V1006 Cyg, SN 2026fvx, AT2025acft, SDSS_J154329.47+335908.6, AT2025sqe, TYC4282-930-1 |
| Salerno_Observatory_FLI | AM_Her, V1413 Aql, TCrB, KS1947+300, Gaia21fji, SN 2026fvx, SAXJ2103.5+4545, AT2025sqe, Gaia20cdl, EECep, Mrk 817, Mrk 841, 8C0716_714, Gaia24ayd, GROJ2058+42, TCP J21220926+4926242 |
| Seestar-S30 | 8C0716_714, BL_Lac |
| Seestar-S50 | SN_2026jlm, BL_Lac, SN 2026fvx |
| UDRO-T11_FLI-PL09000 | SN 2026gzf |
| UDRO-T21_FLI-PL6303E | SN 2026kid |
| UwB_SBIG-4040 | TCrB, SN 2026kie, Q0957+561_A, SN 2026fvx, SDSS_J154329.47+335908.6, Gaia16aoz |
Last week's fits uploads score (sorted by count)
| observatory-user | count |
|---|---|
| Franz-Josef Hambsch (ROADC14_QHY600M) | 10759 |
| Franz-Josef Hambsch (ROAD40_QHY600M) | 6161 |
| Fraser Lewis (LCOGT-HO-2m_Muscat) | 337 |
| Agnieszka Gurgul (PIWNICE90_C4-16000EC) | 328 |
| Zbigniew Grabowski (Seestar-S50) | 297 |
| Staszek Zola (OAUJ-CDK500_U47) | 228 |
| Fraser Lewis (LCOGT-SS-2m_Muscat) | 191 |
| Rachel Street (LCOGT-CTIO-1m_4K) | 191 |
| Valerio Bozza (Salerno_Observatory_FLI) | 181 |
| Franz-Josef Hambsch (AndromedaC14_QHY600M) | 168 |
| Rachel Street (LCOGT-SS-1m_4K) | 126 |
| Evangelos Gkiokas (Kryoneri-1.2_Andor-Zyla) | 120 |
| Adam Popowicz (SUTO-Otivar_ASI1600MM) | 77 |
| Zbigniew Grabowski (Seestar-S30) | 67 |
| Rachel Street (LCOGT-SAAO-1m_4K) | 67 |
| Staszek Zola (PROMPT-MO-1_Apogee) | 35 |
| Franky Dubois (Adonis_G2-1600) | 32 |
| Wojciech Burzyński (UwB_SBIG-4040) | 23 |
| Sjoerd Dufoer (EEye_QHY268M) | 22 |
| Jan Kåre Trandem Qvam (HAO68_G2-1600) | 21 |
| Lukasz Wyrzykowski (LCOGT-Teide-40cm_QHY600M) | 19 |
| Joysankar Majumdar (LCOGT-SS-1m_4K) | 18 |
| Staszek Zola (PROMPT5_Apogee) | 18 |
| Jacek Drazkowski (Seestar-S50) | 16 |
| Jacek Drazkowski (Seestar-S30) | 12 |
| Joysankar Majumdar (LCOGT-CTIO-1m_4K) | 12 |
| Justas Zdanavicius (MOLETAI-80cm_SOPHIA-4096B) | 9 |
| Lukasz Wyrzykowski (LCOGT-MCD-40cm_QHY600M) | 9 |
| Lukasz Wyrzykowski (LCOGT-CTIO-40cm_QHY600M) | 7 |
| Joysankar Majumdar (LCOGT-SAAO-1m_4K) | 6 |
| Priscila Pessi (LCOGT-SS-1m_4K) | 6 |
| Mauritz Wicker (LCOGT-CTIO-1m_4K) | 6 |
| Filipp Romanov (UDRO-T21_FLI-PL6303E) | 4 |
| Mauritz Wicker (LCOGT-Teide-1m_4K) | 3 |
| Lukasz Wyrzykowski (LCOGT-SAAO-40cm_QHY600M) | 3 |
| Filipp Romanov (UDRO-T11_FLI-PL09000) | 3 |
| Lukasz Wyrzykowski (LCOGT-HO-40cm_QHY600M) | 2 |
| Fraser Lewis (LCOGT-SS-40cm_QHY600M) | 2 |
| Filipp Romanov (SRO-T24_FLI-PL09000) | 2 |
| Maria Nicewicz (Seestar-S30) | 2 |
| Jerzy Surma (Seestar-S50) | 2 |
| Andrea Reguitti (AsiagoAO-0.67_G4-16000) | 2 |
Top 5 data uploaders!
| name | count |
|---|---|
| Franz-Josef Hambsch | 17088 |
| Fraser Lewis | 530 |
| Rachel Street | 384 |
| Zbigniew Grabowski | 364 |
| Agnieszka Gurgul | 328 |
Clear skies!
Your BHTOM Team
bhtom.space
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