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BHTOM Targets for 24 March, 2025
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wyrz...@gmail.com
Mar 24, 2025, 10:08:02 AMMar 24
to bhtomt...@googlegroups.com
Hello,
Top 5 data uploaders!
Clear skies!
Your BHTOM Team
bhtom.space
Greetings from the BHTOM Automated Newsletter!
As of 2025-03-24 14:07:01.351650+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 2025efc | 143.681425 | -21.931062 | 15.1 | 136.0 | SN | Astro-COLIBRI target |
| 2025fep | 260.034283 | -60.156694 | 15.5 | 98.0 | Unknown | Possible nuclear transient in nearby galaxy ESO 138- G 021 |
| SN 2025coe | 158.283125 | 28.436972 | 18.5 | 142.0 | SN | Astro-COLIBRI target |
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 | 8.9 | 119.0 | Nova | recurent nova predicted to explode 2024/2025 |
| Gaia24dja | 96.869670 | 3.873100 | 10.7 | 94.0 | Unknown | Small rise in galactic plane source, possible microlensing or Be star |
| RXJ0441.0+4431 | 70.247207 | 44.530349 | 10.8 | 73.0 | XRB | Be X-ray binary |
| IGRJ06074+2205 | 91.860884 | 22.096600 | 11.7 | 88.0 | XRB | Be X-ray binary |
| AM_Her | 274.055228 | 49.867989 | 12.9 | 88.0 | CV | Target for joint optical-radio observations |
| ASASSN-24fw | 106.329000 | 6.205306 | 13.2 | 103.0 | Star | A MS star + IR excess that experienced a 2.5mag deep flux decrease (ATLAS/ASASSN). Needs BVRI (ZYJHK if available) monitoring for relative brightness in egress please |
| 8C0716_714 | 110.472701 | 71.343434 | 13.5 | 94.0 | QSO | high cadence variability suspected |
| Mrk 841 | 226.004963 | 10.437732 | 14.4 | 136.0 | AGN | changinglook AGN |
| SN2024afyu | 258.429383 | 7.625256 | 14.6 | 104.0 | SN | Possible long-term SN II at its peak |
| NGC5683-Seyfert | 218.718578 | 48.661870 | 15.5 | 121.0 | AGN | active nucleus of a nearby galaxy for frequent monitoring |
| Gaia18bwz | 174.611270 | 3.368310 | 15.9 | 170.0 | CV | Known dwarf nova QZ Vir in outburst |
| ZTF18abdciiz | 281.649375 | 0.922556 | 15.9 | 82.0 | Unknown | YSO candidate |
| Gaia24dfc | 52.509900 | 61.429790 | 16.3 | 71.0 | Unknown | Brightening in candidate YSO |
| Gaia24ala | 86.808830 | 0.152040 | 16.3 | 84.0 | YSO | Dimming in candidate YSO |
| ZTF18aarippg | 217.566838 | 23.062372 | 16.4 | 139.0 | QSO | Tick-Tok possibly merging Super Massive Black Hole binary |
| AR UMa | 168.935790 | 42.972890 | 16.5 | 134.0 | CV | CV currently in long outburst, observe densely |
| Gaia24dov | 296.333280 | 36.374570 | 16.5 | 71.0 | Unknown | ~0.8 mag rise in Gaia source |
| ZTF18aavyooe | 289.655333 | 21.456083 | 16.6 | 74.0 | Unknown | YSO candidate |
| SN2025bof | 299.147242 | 50.239614 | 16.7 | 73.0 | SN | Possible SNIa in nearby galaxy |
| SN 2024igg | 227.378793 | 54.505622 | 16.7 | 113.0 | SN | Astro-COLIBRI target |
| AT2024yqo | 122.802017 | 20.380400 | 16.8 | 117.0 | Unknown | TDE, brightening again? |
| Gaia23dgt | 204.096070 | 25.538710 | 17.2 | 146.0 | QSO | Brightening in Gaia source coincident with Seyfert I galaxy |
| Gaia24bmk | 292.814710 | 22.860110 | 17.5 | 71.0 | Unknown | slowly rising object possible microlensing |
| Gaia24cvd | 281.763750 | 5.801830 | 17.6 | 81.0 | Microlensing Event | very red gal.plane source candidate microlensing event rises by 1.5 mag |
| AT2021aeuk | 243.249342 | 42.327847 | 17.8 | 111.0 | Unknown | Weird repeating flaring nucleus of a galaxy |
| SDSSJ094533.99+100950.1 | 146.391622 | 10.163917 | 17.8 | 142.0 | QSO | Long term variable quasar for monitoring |
| AT2025aox | 284.730750 | 25.951750 | 17.8 | 79.0 | Unknown | Candidate supernova found by KATS |
| Gaia24cjg | 303.691375 | 69.701611 | 17.9 | 79.0 | YSO | Possibly new young eruptive star |
| 2025chm | 115.246003 | 16.531544 | 17.9 | 111.0 | Unknown | Nuclear transient classified as TDE |
| name | ra | dec | mag_last | sun_separation | classification | description |
|---|---|---|---|---|---|---|
| T Ori | 83.960201 | -5.476368 | 11.2 | 81.0 | YSO | Herbig AeBe star, YSO |
| Gaia24ccj | 260.245940 | -43.419650 | 11.3 | 100.0 | Unknown | bright blue gal.plane source candidate microlensing event or Be-type outburst rises by 0.2 mag |
| MXB0656-072 | 104.572033 | -7.209779 | 12.0 | 101.0 | XRB | Be X-ray binary |
| Gaia24ccy | 243.402110 | -25.063310 | 13.5 | 117.0 | YSO | known YSO brightens by 2 mag |
| V1787 Ori | 84.538767 | -6.821276 | 13.8 | 82.0 | YSO | Herbig Ae/Be Star |
| Gaia19dbf | 178.699417 | -64.491850 | 13.9 | 117.0 | Unknown | Possibly a YSO |
| TT Ori | 83.819730 | -4.762387 | 14.5 | 81.0 | YSO | eruptive variable, Orion type |
| ZTF18acruktt | 88.904388 | -12.398039 | 15.0 | 86.0 | YSO | YSO candidate |
| V416Ori | 83.838583 | -5.703439 | 15.2 | 81.0 | YSO | variable YSO |
| Gaia24dgn | 264.019000 | -51.888140 | 15.3 | 97.0 | Unknown | microlensing candidate |
| V1725 Sco | 256.693920 | -35.468560 | 15.5 | 104.0 | Nova | Astro-COLIBRI target |
| Gaia23bsf | 276.583080 | -14.036970 | 15.5 | 87.0 | Unknown | Star getting brighter very slowly |
| Gaia24bzq | 240.752570 | -55.539170 | 15.7 | 109.0 | Unknown | candidate microlensing event |
| SN2024adxu | 220.272308 | -17.477025 | 15.8 | 140.0 | SN | Nearby Supernova Type II |
| Gaia23dfq | 89.435410 | -13.676040 | 15.8 | 87.0 | YSO | Possibly new eruptive YSO |
| Gaia24amo | 249.148921 | -53.749919 | 15.8 | 105.0 | Microlensing Event | candidate microlensing event, possibly going for second rise! |
| GRB 250204A | 108.230000 | -23.780000 | 15.8 | 104.0 | Unknown | Astro-COLIBRI target |
| Gaia24cek | 268.863010 | -35.341330 | 16.2 | 94.0 | Unknown | bright long candidate microlensing event near bulge |
| PMNJ0730-6602 | 112.706495 | -66.038578 | 16.5 | 99.0 | AGN | IAUZ Target |
| AT2024aegq | 84.200821 | -57.355289 | 16.6 | 86.0 | TDE | featurless TDE, ePESSTO+ target |
| SN 2024ggi | 169.592047 | -32.837582 | 16.6 | 146.0 | SN | Astro-COLIBRI target, Supernova, still visible |
| Gaia25aao | 172.538810 | -13.748780 | 16.6 | 164.0 | SN | Confirmed SN Ia |
| CTS_C30.10 | 71.833281 | -45.627319 | 16.6 | 76.0 | QSO | Long term variable quasar for monitoring |
| Gaia23bzg | 195.332390 | -14.415280 | 16.7 | 162.0 | QSO | Brightening in known QSO |
| Gaia24ctf | 282.353540 | -12.876540 | 16.7 | 81.0 | Unknown | microlensing candidate |
| TDE2025bri | 212.668492 | -10.799167 | 16.8 | 149.0 | TDE | TDE-He candidate |
| HE0435-4312 | 69.299139 | -43.101189 | 16.9 | 74.0 | QSO | Long term variable quasar for monitoring |
| Gaia24csq | 286.710270 | -26.939590 | 17.0 | 79.0 | Unknown | potential slowly rising microlensing event |
| PKS0454-234 | 74.263250 | -23.414450 | 17.0 | 73.0 | QSO | long time monitoring for ROTUZ team |
| Gaia24dcm | 188.347600 | -63.472310 | 17.0 | 118.0 | Unknown | candidate microlensing event or YSO |
| Gaia21bja | 241.058958 | -21.487719 | 17.0 | 120.0 | YSO | highly varying YSO |
| AT2024eff | 87.924542 | -19.218400 | 17.1 | 86.0 | Unknown | possible nuclear transient, TDE candidate |
| AT2024ablg | 86.040737 | -51.411406 | 17.1 | 87.0 | Unknown | Bright candidate for TDE |
| Gaia23cnm | 285.322920 | -18.717130 | 17.2 | 79.0 | Unknown | slow and long rise, possible microlensing or YSO |
| Gaia24cby | 246.928600 | -42.522380 | 17.3 | 110.0 | Unknown | red target gets brighter, candidate microlensing event near bulge |
| SN2024afav | 192.300204 | -18.103506 | 17.4 | 161.0 | SN | Very nearby SNSL-I, just after the peak |
| S250205ee | 118.979058 | -54.532822 | 17.5 | 106.0 | Unknown | Astro-COLIBRI target |
| SN2013bw | 161.718208 | -1.390811 | 17.6 | 159.0 | SN | close to SN2024hw |
| Gaia24csm | 275.550660 | -19.679440 | 17.6 | 88.0 | Unknown | gal.plane source candidate microlensing event rises by 2.3 mag |
| Gaia24bcb | 253.318940 | -43.191960 | 17.7 | 105.0 | Unknown | Brightening in candidate YSO |
| Gaia24cfr | 267.620330 | -21.007050 | 17.7 | 96.0 | Unknown | red event near bulge, candidate long microlensing event |
| Gaia23dpi | 222.600550 | -66.066000 | 17.8 | 110.0 | Microlensing Event | candidate long microlensing event or Be star |
| Gaia24cff | 266.043340 | -39.113230 | 17.8 | 96.0 | Unknown | near-bulge source candidate for long microlensing event |
| Gaia24csl | 279.775890 | -21.742460 | 17.9 | 84.0 | Unknown | probable microlensing event near Bulge |
Last week's total of images processed: 5435 (3336 with success).
Last week's targets observed:
| camera | target_names |
|---|---|
| Adonis_G2-1600 | TCrB, LS I +61 302, Gaia24dja |
| BIALKOW_ANDOR-DW432 | AT2024yqo |
| GoChile-GoT1_ASI6200 | AT2025efn, AT2024yqo, SN2024adxu, HE0413_4031, SN 2024ggi, HE0435-4312, PKS0454-234, SN2024afav, Gaia25aao, CTS_C30.10, SN2024afyu, AT2025ahn, TDE2025bri |
| HAO68_G2-1600 | SN2025bof, AT2025byb, SN 2024eib, Gaia24aup, AT2024yqo, AT2025aox, LS I +61 302, ZTF18aarippg, TCrB, AT2024kwu, SN2024afpg, Gaia24dov, 8C0716_714 |
| LCOGT-CTIO-1m_4K | Gaia24cfg, V1725 Sco |
| LCOGT-CTIO-40cm_QHY600M | SN2024afyu |
| LCOGT-SAAO-1m_4K | SN2024adxu, Gaia24amo |
| LCOGT-SAAO-40cm_QHY600M | TCrB |
| LCOGT-Teide-1m_4K | SN2024adxu, AT2024kwu |
| LCOGT-Teide-40cm_QHY600M | SN2024afyu |
| OAUJ-CDK500_F42 | SN2025bof, 4U0115+63, LS I +61 302, AT2024kwu, Gaia22efa, SN2024afyu, 8C0716_714 |
| PROMPT-MO-1_Apogee | Gaia25aao |
| PROMPT5_Apogee | Gaia25aao |
| ROAD_QHY600M | ASASSN-21qj, Gaia23dnm, UX Ori, ASASSN-24fw, Gaia19eyy, TCrB, V1787 Ori, Gaia24ala, Gaia24ccy, Gaia24dja, Gaia24dcc, Gaia24dhn, OY Mon, Gaia19fct |
| SOAB_ZWO-ASI2600MM | SN2025bof, RXJ0441.0+4431, Mrk 841, AT2024kwu, ASASSN-24fw, OY Mon, AM_Her, TCrB, Gaia24dja, Gaia21fji, AR UMa, SN2024afyu, 8C0716_714, Gaia22cav, Gaia18bwz, AT2025aox, Gaia24dfc, 4U0115+63, NGC5683-Seyfert, LS I +61 302, SDSS_J154329.47+335908.6, ZTF18aarippg, RXJ0146.9+6121, IGRJ06074+2205, Gaia22efa |
| ZAO_G2-1600 | TCrB, AM_Her |
Last week's fits uploads score (sorted by count)
| observatory-user | count |
|---|---|
| Franz-Josef Hambsch (ROAD_QHY600M) | 4170 |
| Sebastian Kurowski (SOAB_ZWO-ASI2600MM) | 443 |
| Jan Kåre Trandem Qvam (HAO68_G2-1600) | 390 |
| Charles Galdies (ZAO_G2-1600) | 164 |
| Mateusz Bronikowski (GoChile-GoT1_ASI6200) | 91 |
| Alicja Pucek (OAUJ-CDK500_F42) | 34 |
| Yauheni Stsefanenka (OAUJ-CDK500_F42) | 34 |
| Franky Dubois (Adonis_G2-1600) | 32 |
| Przemyslaw J. Mikolajczyk (BIALKOW_ANDOR-DW432) | 23 |
| Staszek Zola (PROMPT-MO-1_Apogee) | 9 |
| Staszek Zola (PROMPT5_Apogee) | 9 |
| Uliana Pylypenko (LCOGT-Teide-1m_4K) | 9 |
| Uliana Pylypenko (LCOGT-SAAO-1m_4K) | 6 |
| Uliana Pylypenko (LCOGT-CTIO-1m_4K) | 6 |
| Eduardo Concepcion (GoChile-GoT1_ASI6200) | 6 |
| Uliana Pylypenko (LCOGT-Teide-40cm_QHY600M) | 3 |
| Uliana Pylypenko (LCOGT-SAAO-40cm_QHY600M) | 3 |
| Uliana Pylypenko (LCOGT-CTIO-40cm_QHY600M) | 3 |
Top 5 data uploaders!
| name | count |
|---|---|
| Franz-Josef Hambsch | 4170 |
| Sebastian Kurowski | 443 |
| Jan Kåre Trandem Qvam | 390 |
| Charles Galdies | 164 |
| Mateusz Bronikowski | 91 |
Clear skies!
Your BHTOM Team
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