Update to 1.0.6

meson.build

@@ -1,5 +1,5 @@
 project('astroterm', 'c',
-    version: '1.0.5',
+    version: '1.0.6',
     default_options : ['warning_level=3', 'buildtype=debug'],
     meson_version: '>=1.4.0',
 )

scripts/bsc5_ascii_to_bin.py

@@ -150,14 +150,16 @@ def create_binary_header() -> bytes:
 
 def create_binary_entry(entry : CatalogEntry) -> bytes:
     """Write a single catalog entry to the binary file."""
+
+    # Using '<' to force little endian byte order
     binary_entry = (
-        struct.pack('f', entry.XNO) +                # Catalog number (Real*4)
-        struct.pack('d', entry.SRA0) +               # Right Ascension in radians (Real*8)
-        struct.pack('d', entry.SDEC0) +              # Declination in radians (Real*8)
-        entry.IS.encode('ascii').ljust(2, b'\x00') + # Spectral type (Character*2)
-        struct.pack('h', entry.MAG) +                # V Magnitude * 100 (Integer*2)
-        struct.pack('f', entry.XRPM) +               # R.A. proper motion (Real*4)
-        struct.pack('f', entry.XDPM)                 # Dec. proper motion (Real*4)
+        struct.pack('<f', entry.XNO) +                # Catalog number (Real*4)
+        struct.pack('<d', entry.SRA0) +               # Right Ascension in radians (Real*8)
+        struct.pack('<d', entry.SDEC0) +              # Declination in radians (Real*8)
+        entry.IS.encode('ascii').ljust(2, b'\x00') +  # Spectral type (Character*2)
+        struct.pack('<h', entry.MAG) +                # V Magnitude * 100 (Integer*2)
+        struct.pack('<f', entry.XRPM) +               # R.A. proper motion (Real*4)
+        struct.pack('<f', entry.XDPM)                 # Dec. proper motion (Real*4)
     )
 
     assert len(binary_entry) == 32, (

src/main.c

@@ -506,14 +506,14 @@ const char *get_timezone(const struct tm *local_time)
 #ifdef _WIN32
     // Windows-specific code
     TIME_ZONE_INFORMATION tz_info;
-    if (GetTimeZoneInformation(&tz_info) == TIME_ZONE_ID_DAYLIGHT && local_time->tm_isdst > 0)
-    {
-        return tz_info.DaylightName; // DST time zone name
-    }
-    else
-    {
-        return tz_info.StandardName; // Standard time zone name
-    }
+    GetTimeZoneInformation(&tz_info);
+
+    static char tzbuf[8];
+    char sign = tz_info.Bias > 0 ? '-' : '+';
+    long hours = labs(tz_info.Bias) / 60;
+    long minutes = labs(tz_info.Bias) % 60;
+    snprintf(tzbuf, sizeof(tzbuf), "%c%02ld:%02ld", sign, hours, minutes);
+    return tzbuf;
 #else
     // Unix-like systems (Linux/macOS) code
     extern char *tzname[2]; // tzname[0] is standard, tzname[1] is DST